Please spend some time reflecting on what you've learned about acids and bases and
think about some of the cleaning items in your house. Answer the questions below and
forward them to your teacher. Each question is worth 10 points.
1. Think about some of the items that we use and consume everyday, like shampoo,
toothpaste, soap, food, etc. Which of the items are acids, and which are bases? Keep
a journal of various items you use for one week. Include in your journal several
properties of each item, whether it is an acid or a base, and why you think so.
Answers
Answer:
1. Most shampoos are acidic, soap and toothpaste are mostly alkaline.
2. Toilet cleaner - Acidic, Lotion - Acidic, Bleach - Alkaline, Lemon Juice - Acidic
Related Questions
How does the human immune system destroy a pathogen in the body?A. B cells release antibodies that neutralize the pathogen.B. Antibiotics are released by B cells to destroy the pathogen.C. Lymphocytes recognizes pathogens as antigens in the body.D. T cells build immunity to the pathogen by releasing antibodies.
Answers
T cells are important to our immune system, but they do not release antibodies. They activate B cells and cytotoxic T lymphocytes to kill cells that are infected. Therefore, D is incorrect.
Antibiotics are not produced by our immune system. They can be found in nature or synthesized in labs. Therefore, B is incorrect too.
Lymphocytes are divided into T and B cells. B lymphocytes release antibodies that will recognize pathogens and bind to them, but T cells doesn't work like that. Lymphocyts does not recognize pathogens and C is incorrect as well.
B cells create antibodies, release them and they will bind to pathogens to neutralize them. Therefore, the correct answer is A. B cells release antibodies that neutralize the pathogen.
cystic fibrosis is caused by nonsense and missense mutations in the cftr gene, which encodes for a chloride channel. you are studying cystic fibrosis patients to determine what mutation they possess in the cftr gene. the difference between the mutant and wild type cftr genes can be uncovered by examining the cftr:
Answers
Examining the function of the CFTR protein, such as its capacity to transport chloride ions across the cell membrane, reveals the distinction between the mutant and wild type CFTR genes.
Mutations in the CFTR gene, which encodes a protein that acts as a chloride channel, are the root cause of the genetic condition known as cystic fibrosis (CF). The CFTR gene can be affected by missense and nonsense mutations, which can result in the protein not functioning properly and the typical symptoms of CF. As a result, researchers can measure the CFTR protein's capacity to transport chloride ions in order to ascertain the specific mutation in the CFTR gene that a patient possesses.
Electrophysiology, ion-selective electrodes, and fluorescent dyes are just a few of the tools that can be used to accomplish this. Healthcare providers can tailor a patient's treatment to effectively manage CF symptoms by knowing the specific mutation.
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1. What is the difference between Environmental Science and Environmental Engineering?
2. Why do we need to understand Environmental Science before studying Environmental Engineering?
3. Summarize and make a process flow diagram describing the Biogeochemical Cycles for the following: 4. Water Cycle, Carbon Cycle, Nitrogen Cycle, Sulfur Cycle, Phosphorus Cycle.
5. Explain how human beings are altering these biogeochemical cycles.
6. Define sustainability. How can you contribute to sustainable development with your awareness on the environment?
Answers
The difference between Environmental Science and Environmental Engineering: Environmental Science and Environmental Engineering are closely related disciplines with different focuses.
Environmental Science studies the natural environment and its interactions with living organisms, including humans. It is a field that is broad and interdisciplinary, geology, and physics. In contrast, Environmental Engineering is a more specialized field that focuses on the application of engineering principles to environmental problems.
The reason why we need to understand Environmental Science before studying Environmental Engineering: Environmental Engineering builds on the principles of Environmental Science and requires an understanding of the natural environment and the ways in which human activities impact it.
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Fill in the blanks with abiotic factors that would affect an aquatic environment.
Temperature, light intensity, oxygen levels, t______, water salinity, movement, and chemistry.
I only need one more.
Answers
Hello :)
Answer:
I think the answer is tides.
Explanation:
Abiotic factors that influence aquatic biomes include light availability, depth, stratification, temperature, currents, and tides.
hope this helps :) !!!
A small population of chimpanzees lives in a habitat that undergoes no changes for a long period of time. How might genetic drift affect this population?
Answers
Genetic drift might affect this small population of chimpanzees, It will reduce genetic diversity.
Populаtion size, technicаlly the effective populаtion size, is relаted to the strength of drift аnd the likelihood of inbreeding in the populаtion. Smаll populаtions tend to lose genetic diversity more quickly thаn lаrge populаtions due to stochаstic sаmpling error (i.e., genetic drift). This is becаuse some versions of а gene cаn be lost due to rаndom chаnce, аnd this is more likely to occur when populаtions аre smаll. Аdditionаlly, smаller populаtion size meаns thаt individuаls аre more likely to breed with close relаtives.
Your question is incomplete, but most probably your full options were
A. It will accelerate the appearance of new traits.
B. It will promote the survival of chimpanzees with beneficial traits.
C. It will increase the number of alleles for specific traits.
D. It will reduce genetic diversity.
Thus, the correct option is D.
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Key hormones of the sympathetic nervous system include:_______
Answers
Answer: norepinephrine and epinephrin
Explanation:
The main hormones of the sympathetic nervous system are Norepinephrine and Epinephrine. Both hormones are vital for preparing the body for action, either to 'fight or flight'.
Explanation:The key hormones of the sympathetic nervous system include Norepinephrine and Epinephrine. These hormones play a vital role in preparing our body for action, commonly known as the 'fight or flight' response. Norepinephrine, also called noradrenaline, is chiefly responsible for raising heart rate, increasing blood flow, and minimizing digestive process. Epinephrine, also known as adrenaline, intensifies the body's metabolism and physical strength while suppressing non-emergency bodily processes like digestion.
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the study of and policies related to the improvement of the human race via control over selective reproduction is referred to as
Answers
The study of and policies related to the improvement of the human race via control over selective reproduction is referred to as eugenics. Eugenics is the science of improving the genetic qualities of human beings, especially through selective breeding and sterilization.
Eugenics is a complex concept that gained popularity in the late 19th and early 20th centuries and has been applied to a variety of fields including race, disability, and population control. Eugenics was used to justify the practice of forced sterilization, which was carried out on thousands of individuals in many countries including the United States, Canada, and Sweden.
The idea was that by controlling who could reproduce, certain genetic traits could be eliminated, and desirable traits could be promoted. This idea was embraced by many people who believed that it was possible to create a superior race of humans through selective breeding.
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what hormone is responsible for the reabsorption of sodium ions into the blood?
Answers
The hormone responsible for the reabsorption of sodium ions into the blood is aldosterone.
Aldosterone is a steroid hormone produced by the adrenal glands in response to low blood pressure or low blood sodium levels. It acts on the kidneys, specifically on the cells of the distal tubules and collecting ducts, to increase the reabsorption of sodium ions from the urine back into the blood.
When aldosterone binds to its receptors on the renal tubular cells, it stimulates the production of sodium channels and the sodium-potassium ATPase pump, which actively transports sodium ions out of the tubular fluid and into the bloodstream. This results in an increase in the reabsorption of sodium and an increase in water reabsorption, leading to an increase in blood volume and blood pressure.
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PLS HELP IVE BEEN STUCK ON THIS FOR 2 DAYS AND I HAVE TO TURN IT IN SOON!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Part A: A dichotomous key works on the principle of asking yes-or-no questions about the organism. To identify it, the answers for that organism are then compared to existing organisms to identify it. Prepare a list of four to five questions about each of the organisms listed below to help you create your own key. For each question, make sure the answer isn’t the same for all four organisms. For example, Does the organism have cells? would be an inappropriate question, because all the organisms have cells.
Part B: Information about the four organisms can be found on the Internet. Use credible websites to find answers to the questions you developed in part A. Based on this data, draw your own dichotomous key.
Shapes
Answers
Answer:
subject
Biology, 21.10.2020 16:01 jazz589729
Information about the four organisms can be found on the Internet. Use credible websites to find answers to the questions you developed in part A. Based on this data, draw your own dichotomous key. Based on the key you created, do you think some of the organisms are more closely related than others? Explain your answer.
Part 1 was this:A dichotomous key works on the principle of asking yes-or-no questions about the organism. To identify it, the answers for that organism are then compared to existing organisms to identify it. Prepare a list of four to five questions about each of the organisms listed below to help you create your own key. For each question, make sure the answer isn’t the same for all four organisms. For example, Does the organism have cells? would be an inappropriate question, because all the organisms have cells.
brewer’s yeast (Saccharomyces cerevisiae)
E. coli bacteria (Escherichia coli)
green hydra (Hydra viridissima)
house cat (Felis catus)
Here were my answers:Brewer’s yeast
Is it a unicellular organism? Yes
Is it found inside the human body? Yes
Is it visible without a microscope? Yes
Can it produce its own food? No
E. coli bacteria
Is it a unicellular organism? Yes
Is it found inside the human body? Yes
Is it visible without a microscope? No
Can it produce its own food? No
Green hydra (Hydra viridissima)
Is it a unicellular organism? No
Is it found inside the human body? No
Is it visible without a microscope? Yes
Can it produce its own food? Yes
House cat (Felis catus)
Is it a unicellular organism? No
Is it found inside the human body? No
Is it visible without a microscope? Yes
Can it produce its own food? No
Explanation:
Question 9 Regarding the theory of trees, which directory is a "leaf" node? O /usr/local/linuxgym-data O none of these choices O /home/student O all of these choices O /bin Question 10 1 pts Which fil
Answers
The node that is unconnected to any child nodes is referred to as a "leaf" node in the context of tree theory. It is frequently shown as the terminal node or endpoint in a tree structure.
When comparing the available options, "/usr/local/linuxgym-data," "/home/student," "/bin," and "none of these choices," it is unclear which directory is being referenced to as a leaf node. We need to understand the tree's structure and the connections between the directories in order to recognise a leaf node. It is impossible to tell which directory would be categorised as a leaf node without additional knowledge on the tree topology or the precise connections between these directories.
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The earliest classification systems grouped organisms based on
have focused on
to better understand evolutionary ancestry
Since then, newer classification systems
Answers
Answer:
On the basis of physical traits.
Explanation:
Newer classification systems classify organisms on the basis of physical traits of an organism. All modern classification systems gets their concept and help from Linnaean classification system. In these new classification systems, those organisms that have similar characteristics are placed in one group because they evolve from the same ancestor or having common ancestry. These changes occurs in the organisms with the passage of time that helps organisms to survive in that environment.
Droughts occur due to climate change and elevated temperatures, which in turn may lead to other consequences as well. Imagine that a wildfire happened in the nature reserve. Predict what would happen if such an environmental shift that is so extreme and rapid
Hits the nature reserve and the population of deer mice does not have time to adapt. Propose a possible solution for this problem.
Answers
Answer:
this is not a correct Q
this is wrong
The light- independent reactions are also called the _____.
Answers
Answer: The light-independent reactions are also called the dark reactions or the Calvin cycle.
I hope this helps!
Outline the steps of one application of biotechnology
Answers
All steps for one application of biotechnology is given below.
What do you mean by biotechnology?Biotechnology is the application of technology to the study of living organisms and their functions. It encompasses a wide range of techniques and technologies used to manipulate and study the genetic makeup of living organisms, from bacteria and viruses to plants and animals.
There are many different applications of biotechnology, but one example of a common application is the production of recombinant proteins using recombinant DNA technology. The steps for this process include:
Isolation of the gene encoding the desired protein: The first step is to identify and isolate the gene that encodes the protein of interest. This is typically done by PCR or plasmid isolation from the organism in which the protein is naturally found.Cloning of the gene into a plasmid vector: The isolated gene is then inserted into a plasmid vector, which is a small, circular piece of DNA that can be easily replicated and introduced into a host cell.Transformation of the plasmid into a host cell: The plasmid vector containing the desired gene is then introduced into a host cell, such as E. coli, through a process called transformation.Growth and expression of the recombinant protein: The host cells containing the plasmid vector will then grow and reproduce, producing many copies of the recombinant protein encoded by the inserted gene.Purification of the recombinant protein: The recombinant protein is then purified from the host cell lysate using techniques such as centrifugation, precipitation, and chromatography.Quality control: The purified protein is then characterized to ensure it has the desired properties and is suitable for use in downstream applications.Use: The purified protein can then be used for various applications such as medical treatments, drug discovery, and research.This is just one example of a biotechnology application, and many other techniques are used in different fields.
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Which parts of DNA provide the code for proteins?
Answers
Answer:
The genetic code is the sequence of nucleotide bases in nucleic acids (DNA and RNA) that code for amino acid chains in proteins. DNA consists of the four nucleotide bases: adenine (A), guanine (G), cytosine (C) and thymine (T). RNA contains the nucleotides adenine, guanine, cytosine and uracil (U).
A gene is a section of a DNA molecule that contains the information to code for one specific protein.
The DNA code contains instructions needed to make the proteins and molecules essential for growth, development and health.What is gene?A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. Many genes do not code for proteins.What is DNA?
DNA is the genetic material, which is involved in carrying the hereditary information, replication process, mutations, and also in the equal distribution of DNA during the cell division.
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which enzyme action stops due to a buildup (negative feedback) of an end product that acts as a regulatory molecule
Answers
The enzyme action that stops due to a buildup of an end product that acts as a regulatory molecule is known as feedback inhibition.
Feedback inhibition is a form of negative feedback where the end product of a metabolic pathway inhibits the activity of an enzyme earlier in the pathway, preventing further production of the end product. This helps to maintain homeostasis and prevent excessive accumulation of a particular molecule in the cell or organism.
In this process, the end product binds to the enzyme's allosteric site, causing a conformational change and reducing the enzyme's activity. This helps maintain a balanced concentration of products and prevents overproduction.
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if there is 8 g of a substance before a physical change, how much will there be afferwards
Answers
Answer:
The correct answer is 8 g.
Explanation:
During a physical change, the identity of the substance does not change, because no chemical reaction occurs. So, after the change, the amount of substance is still the same. Examples of physical changes are changes in the state of matter (solid-liquid-gas). If 8 grams of ice (water in the solid-state) are melted, after the melting process we will have 8 grams of water in the liquid-state, but still 8 grams of water.
Place each of the following into the appropriate category of competition.
Interspecific - interference competition:
Interspecific - exploitation competition:
Intraspecific - interference competition:
Intraspecific - exploitation competition:
options :
- During the breeding season, male elephant seals engage in vicious battles for control of a harem of females
- In late fall, American red squirrels scurry around the base of a white oak collecting as many acorns as possible for their individual winter food caches.
- An eastern bluebird and a European starling compete for nest cavities by physical confrontations
- If given the opportunity, a bold eagle will steal a fish that an osprey has caught rather than catching a fish itself.
- White-tailed deer browse the understory of a deciduous forest, eating the vegetation that numerous other species depend on
- Paramecium caudatum and P. Bursaria both show a drop in population densities when housed together
Answers
Competition can occur both between different species (interspecific) and within the same species (intraspecific). Interspecific competition can involve interference, where individuals physically confront each other for resources like nest sites or mates, or exploitation, where one species takes advantage of resources acquired by another species.
Interspecific - interference competition:
An eastern bluebird and a European starling compete for nest cavities by physical confrontations.
Interspecific - exploitation competition:
If given the opportunity, a bold eagle will steal a fish that an osprey has caught rather than catching a fish itself.
White-tailed deer browse the understory of a deciduous forest, eating the vegetation that numerous other species depend on.
Intraspecific - interference competition:
During the breeding season, male elephant seals engage in vicious battles for control of a harem of females.
Intraspecific - exploitation competition:
In late fall, American red squirrels scurry around the base of a white oak collecting as many acorns as possible for their individual winter food caches.
Paramecium caudatum and P. Bursaria both show a drop in population densities when housed together.
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The ____ of the material caused ____________ of the layers beneath.
PLEASE HELP ASAP! Best answer will get brainliest! (Earth Science)
Answers
Answer:
The layers of Earth provide geologists and geophysicists clues to how Earth formed, the layers that make up other planetary bodies, the source of Earth’s resources, and much more. Modern advances have allowed scientists to study what lies beneath our feet in more detail than ever before and yet there still remains significant gaps in our understanding.
Explanation:
Hope it's help
Because they reside so close together on the chromosome, there is a reduced chance that ____________ will occur and therefore they do not follow the traditional Mendelian genotypic ratios.
Answers
In simpler words, the exchange of genetic material between homologous chromosomes during meiosis is referred to as crossing over. The main purpose of crossing over is to create genetic variation, which is necessary for evolution.
The term that should be included in the answer is "crossing over."When genes are located so close together on the same chromosome, a reduced possibility of crossing over will occur. This means that the chance of separation and recombination of the alleles will be lessened. As a result, the genes will not follow the traditional Mendelian genotypic ratios.What is crossing over?Crossing over is a process of exchange of genetic material between homologous chromosomes. In crossing over, two chromatids, one from each of the homologous chromosomes, exchange genetic material to produce two recombinant chromosomes that have a mixture of both paternal and maternal genes.In simpler words, the exchange of genetic material between homologous chromosomes during meiosis is referred to as crossing over. The main purpose of crossing over is to create genetic variation, which is necessary for evolution.
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What are the building blocks of proteins?
A. sugars
B. fatty acids
C. amino acids
D. nitrogen bases
Answers
They combine to form proteins
Which of the following is NOT true of a reaction that breaks a bond?
A. It creates low-energy products
B. It is what happens in cellular respiration
C. It is an endergonic reaction
Answers
Answer:
C
Explanation:
Endergonic reactions use energy to build bonds
Exergonic reactions release energy through breaking bonds
C. It is an endergonic reaction.
Endergonic v/s Exergonic:
In the exergonic reaction, the reactants are at a higher free energy level than the products (reaction goes energetically downhill) while In the endergonic reaction reaction, the reactants are at a lower free energy level than the products (reaction goes energetically uphill). Endergonic reactions use energy to build bonds while Exergonic reactions release energy through breaking bonds.When a bond breaks, it creates low-energy products.In cellular respiration, breaking of bond happens.Therefore, the statement which is NOT true for a reaction that breaks a bond is option C.
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Helppp it’s really important
Answers
Answer:
option (a) because....,
Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). ... Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA)
option (b) not because,
Within that centrosome there are two centrioles. And centrioles are physical objects made up of things called microtubules.
option (c) not because....,
Centromere repeats in humans are made up of alpha-satellite DNA, a ∼171 bp sequence or monomer that is iteratively repeated. Alpha-satellite monomers are arranged head-to-tail and organized into repeated arrays called higher order repeats (HORs) that range from 0.2 to 5 megabases (Mb) and are chromosome specific.
not option (d) because...,
Centromere repeats in humans are made up of alpha-satellite DNA, a ∼171 bp sequence or monomer that is iteratively repeated. Alpha-satellite monomers are arranged head-to-tail and organized into repeated arrays called higher order repeats (HORs) that range from 0.2 to 5 megabases (Mb) and are chromosome specific.
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An organism with IsCAP+P+O+Z+Y+A+/F’I+ will have a normal functioning Lac operon.
a) True
b) False
Answers
An organism with is CAP+P+O+Z+Y+A+/F’I+ will have a normal functioning Lac operon - False
The presence of F’I+ indicates that the organism has an extra copy of the lac operon, which can result in higher than normal levels of gene expression. Additionally, the IsCAP+, P+, O+, Z+, Y+, and A+ indicate that the lac operon is inducible and functional. However, the presence of A+/F’I+ suggests that there is a mutation in the regulatory gene that codes for the lac repressor protein. This mutation prevents the repressor from binding to the operator site and inhibiting transcription, leading to constitutive expression of the lac operon even in the absence of lactose.
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The diagram shows a sequence. Which phrase best describes the sequence of the diagram?
Answers
c the path of energy through a food web in a natural community..
hope you will find it good,..
Which of the following does not play an important role in the establishment of axon tracts and in growth cone navigation?
a. Cell adhesion molecules
b. The establishment of cell polarity
c. Cytoskeletal proteins
d. Second messenger systems
e. All of the above do play an important role.
Answers
Answer:
Explanation:
The correct answer is d. Second messenger systems. Cell adhesion molecules, the establishment of cell polarity, and cytoskeletal proteins all play important roles in the establishment of axon tracts and growth cone navigation.
Cell adhesion molecules (CAMs) are involved in cell-to-cell interactions and play a critical role in guiding axons during development. They help mediate adhesion between growth cones and their target cells or extracellular matrix, providing guidance cues for axon pathfinding.
The establishment of cell polarity is crucial for axon outgrowth and guidance. It involves the development of distinct cellular compartments, such as the growth cone, which enables directional axon extension and navigation. Intracellular signaling pathways and cytoskeletal dynamics are involved in this process.
Cytoskeletal proteins, such as microtubules and actin filaments, provide structural support and facilitate axon growth and navigation. They are responsible for growth cone extension, turning, and guidance in response to guidance cues.
On the other hand, second messenger systems typically refer to intracellular signaling pathways that utilize small molecules as secondary messengers to transmit signals within the cell. While second messenger systems are involved in various cellular processes, they are not primarily associated with the establishment of axon tracts and growth cone navigation.
Therefore, the correct answer is d. Second messenger systems.
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how do i find out the eyepiece magnification?
Answers
Answer:To calculate the magnification, we just need two numbers:
The telescope’s focal length (for example, 1200mm)
The eyepiece’s focal length (for example, 25mm)
Explanation:
What technologies (devices) have led to scientific discoveries in selective breeding in animals
Answers
There are several strategies for selective breeding, ranging from high-tech and expensive procedures like in-vitro fertilization or genetic engineering to simpler, less expensive approaches that rely on the selection and controlled mating of animals based on visible features.
Techniques including inbreeding, linebreeding, and outcrossing are used in animal breeding. Similar techniques are employed in plant breeding.
Abstract. Efficiencies suited for application in animal husbandry have been established for the novel biotechnologies of gene transfer, in-vitro production, cloning, and embryo sexing.
Selective breeding is a type of genetic alteration that doesn't include introducing extraneous DNA into the organism. Instead, it refers to the deliberate selection of positive features.
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Q- What technologies (devices) have led to scientific discoveries in selective breeding in animals?
what characteristics or adaptations did the extinct organisms lack to not be able to survive during the triasic jurrasic
Answers
The characteristics or adaptations the extinct organisms lack to not be able to survive during the triassic jurrasic period is adaptation for burrowing, specialized teeth, and dehydration resistance.
What are the adaptations?During the Triassic-Jurassic, extinct organisms lacked certain characteristics or adaptations that prevented them from surviving. The following are some examples of such characteristics or adaptations: Adaptations for Burrowing: Many Triassic species had evolved adaptations for burrowing that allowed them to escape harsh environments or predators. However, such adaptations did not help them survive the Jurassic era's drier and hotter conditions.
Specialized Teeth: Various Triassic species had specialized teeth to eat tough plants, which were abundant during that era. But, after the Permian extinction, new plant types emerged, and these specialized teeth did not allow these species to survive. Dehydration Resistance: Many Triassic species could withstand dehydration, which was a necessary adaptation in arid conditions. However, the Jurassic era had much drier and hotter conditions, which meant that the species could not withstand the new environmental conditions.
In summary, the lack of suitable adaptations for the new environmental conditions, particularly the drier and hotter conditions, was one of the main reasons why certain extinct organisms could not survive during the Triassic-Jurassic era.
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You are taking a cruise from California to Hawaii. About halfway there the ship begins to sink. You are able to board a lifeboat, but now you are floating in the ocean waiting to be rescued. After several days you are so thirsty that you bend over the side of the boat and drink lots of salty seawater. What happens to your body
Answers
Answer:
What happens is the dehydration phenomenon.
Explanation:
The phenomenon of dehydration occurs because when you are at sea for many days, you breathe the salty mist that occurs on the surface of the sea (which is even greater at night), this mist is high in solutes and salts that is why that when inhaled, the body will seek to increase blood volume to lower the plasma concentrations of these solutes in the blood.
Also, during breathing, a lot of water is lost and other physiological processes are why we need a daily consumption of water.
In the case of this situation where the person is abandoned, water consumption is low.
The consequences of dehydration are serious, since there is hypotension, decreased blood volume, hypovolemic shock, loss of consciousness and even possible death.