Answer:
Homeostasis is to keep an internal environment stable and balanced. An example of your body trying to maintain homeostasis is when it is very hot outside and you sweat. Our integumentary system plays a role in this by regulating our body temperature.
Explanation:
4
Drag each label to the correct location on the image.
Classify the disease according to whether it affects the digestive system or respiratory system.
canine parvovirus infection
coccidiosis
giardiasis
Respiratory
tracheobronchitis
feline viral rhinotracheitis
Digestive
The diseases according to their effects are:
canine parvovirus infection - Digestive
coccidiosis - Digestive
giardiasis - Digestive
tracheobronchitis - Respiratory
feline viral rhinotracheitis - Respiratory
What is feline viral rhinotracheitis?Feline viral rhinotracheitis (FVR) is a widespread respiratory disease caused by felid herpesvirus 1. (FeHV-1). The disease impairs pulmonary defense mechanisms, predisposing cats to secondary bacterial pneumonia or feline calicivirus infection.
Respiratory infections are common in cats, particularly in densely populated areas such as shelters, breeding catteries, and feral cat colonies. These infections, which have a negative impact on feline health, are caused by a variety of viruses, bacteria, fungi, and protozoa.
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Using the strand of mRNA below along with either of the codon charts,( place the amino acids in the correct order .)PheArgAsnThrMetGluStopTyrLysSer
Answer: Met - Glu - Tyr - Asn - Thr - Lys - Phe - Arg - Ser - Stop
Explanation:
mRNA: AUG GAA UAC AAU ACU AAG UUC CGU AGU UAA
Firstly, each codon is formed by three nucleotides, that codify for an amino acid.
In the chart of the left, the first nucleotide is represented on the left column, the second is represented by the row on the top, and the third nucleotide is represented by the column on the right. In the intersection of these three, is the amino acid corresponding to the nucleotide triplet.
The right chart, has to be followed from the center to the external part, so the first circle, that is divided in four, represents the first nucleotide, while the amino acid is located in the most external part of the chart.
Pollution is a problem associated with urban sprawl, but not with upward growth. T F
Answer: True
Explanation:
Answer: correct answer is FALSE
Explanation:
im that guy
write an analogy of a negative feedback loop (basically an example of a negative feedback loop but in a story)
Answer: My life is so hard, I have to WALK to school in the Rain every single day. You think that's Bad I have to walk in the pollution, Which hurts people lungs.. They're is nothing else to say but pollution is one of the top Priority's that are causing the earth to die.
Something like that make feedback about a ad cause on the earth or a good one and turn it into a negative thing.
what organelle plays a large role in exocytosis by packaging proteins into vesicles
The organelle that plays a large role in exocytosis by packaging proteins into vesicles is the Golgi apparatus. It modifies, sorts, and packages proteins and lipids into vesicles, which can then be transported to the plasma membrane for secretion. These vesicles fuse with the plasma membrane and release their contents outside of the cell.
The Golgi apparatus, also known as the Golgi complex or Golgi body, is a cellular organelle involved in processing, modifying, and packaging proteins. It consists of flattened, membrane-bound sacs called cisternae. One of the essential functions of the Golgi apparatus is to process and sort proteins synthesized in the endoplasmic reticulum (ER).
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What is the step that is labeled D?
metaphase I
metaphase II
telophase II
telophase I
Answer:
D
Explanation:
In which case would you use a dissecting microscope rather than a compound microscope? D.to view the cells of the skin B.to determine the shape of the bacteria A.to view the surface of a plant leaf C.to determine the type of virus in a specimen
Can someone help me if this is correct
Answer:
the answer is C
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PLS HELP RN PLS
When two molecules of water are oxidized by PSII, how many total hydrogens are generated in the thylakoid lumen?
If 4 molecules of water are oxidized by the light-dependent reactions, how many molecules of ATP are formed directly as a result?
When two molecules of water are oxidized by PSII, the total hydrogens generated in the thylakoid lumen is 4 hydrogen ions.
When 4 molecules of water are oxidized by the light-dependent reactions, six molecules of ATP are formed directly as a result
What is the light reaction in photosynthesis?The light-dependent reaction in photosynthesis is the reaction that occurs in the presence of sunlight as a catalyst.
The light reactions of photosynthesis occur in photosystems I, PSI, and photosystems II, PSII present in the thylakoid membrane of the chloroplast.
In the light reactions of photosynthesis, water molecules are oxidized to oxygen and ATP molecules are produced which drives the dark reactions of photosynthesis.
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Write a paragraph about cells (5 sentences)
Answer:
prokaryotic: A prokaryote is a single celled organism that does not have a nucleus or membrane bound organelled and its dna is in the cytoplasm. They also cant undergo mitosis because they dont have a nucleus. they are most likely to be unicellular
examples: archea and bacteria
eukaryotic:
A eukaryotic cell is an organism made up of cell that contain their dna in a nucleus. Eukaryotic cells contain membrane bound organelles as well as ribosomes.not all of them are the same though. mst of them are multicellular and go through mitosis
examples: fungi, plants, animals
DNA replication occurs during the interphase preceding which process(es)? A.Mitosis
B.Meiosis I
C.Meiosis II
D.Both a and b
E.All of the above
DNA replication occurs during the interphase preceding both mitosis and meiosis.
Mitosis is a process that divides the nucleus in a cell to produce two genetically identical daughter nuclei. Meiosis is a two-part cell division process that produces four daughter cells from a single parent cell, each containing half the number of chromosomes as the original cell. So the answer is E. All of the above.
During the interphase preceding mitosis and meiosis I, the DNA in the cell is replicated in order to create two identical copies of the genetic material. This is necessary because during mitosis and meiosis I, the cell will divide, and each daughter cell needs to have a complete set of genetic material.
DNA replication does not occur during the interphase preceding meiosis II because the genetic material has already been replicated during the interphase preceding meiosis I.
Therefore, the correct answer is D. Both a and b, as DNA replication occurs during the interphase preceding both mitosis and meiosis I.
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Which statement might explain why there are so many variations of a particular phage type, eg. coliphages, for E.coli? (Check all that apply.) As E cow species evolved and differentiated into different strains the phages had to change in order to infect the different strains Oferent strains of E coll developed as a result of aptibiotic exposure, and the page had to evolve along with the host Every time new pages burst out of 6 host cell the new viruses are genetically different from the original infectious phoge
The third statement "Every time new phages burst out of a host cell the new viruses are genetically different from the original infectious phage" is correct.
The given question is asking for the statements that explain why there are so many variations of a particular phage type like coliphages for E.coli. So, let's see which statement is correct: Every time new phages burst out of a host cell, the new viruses are genetically different from the original infectious phage. It helps to explain why there are so many variations of a particular phage type, such as coliphages, for E.coli.
Therefore, the third statement "Every time new phages burst out of a host cell the new viruses are genetically different from the original infectious phage" is correct and explains why there are so many variations of a particular phage type.
It can be concluded that the answer is option C.
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what is the purpose of the slit in the spectroscope
The purpose of the slit in the spectroscope is to create a narrow beam of light which can be dispersed into its component parts. This allows the user to measure the wavelengths of the light, and see the components of the light spectrum. The slit also helps to increase the resolution of the spectroscope, allowing for more accurate measurements.
When light passes through the slit, it is focused into a narrow beam. The slit is usually adjustable, which allows the user to control the size of the beam. This size determines the accuracy of the measurements. The larger the beam, the more dispersed the light is and the less accurate the measurements.
The slit also helps to reduce the amount of scattered light entering the spectroscope, which can interfere with the measurements. Scattered light occurs when light reflects off the walls of the spectroscope and enters the eye piece. By reducing the size of the beam of light, the amount of scattered light is reduced.
Finally, the slit also allows the user to reduce the amount of ambient light entering the spectroscope. This helps the user to observe faint objects, such as stars or galaxies, that are too faint to be seen without the use of the spectroscope.
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A child plays with a black ball. Explain why the ball looks black
The ball looks black because it is absorbing all the visible light that is hitting it and reflecting none of it back.
Black ball is a term used in various sports, games, and competitive activities to describe a situation where a player or team has been excluded or disqualified from further participation. All objects absorb some wavelengths of light and reflect others, and the combination of reflected wavelengths is what gives the object its color. In the case of a black ball, it is absorbing all the visible wavelengths and therefore reflecting none, giving it the appearance of being black.This is because black objects are good absorbers and poor reflectors of light. As a result, the black ball appears black when viewed by the eye.
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If undisturbed by human activities, the greenhouse effect is a normal
process that ensures enough heat is trapped on Earth to support life.
O True
O False
Answer:
true
Explanation:
Natural selection says that the organisms that survive to reproduce are
those organisms with the most variability,
the organisms with the least mutations.
the best adapted to their environment,
the organisms with the most mutations.
a cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed at two years. What is the control group in this scenario?
PLEASE HELP!!! (ANSWER APPROPRIATELY)
Answer:
With the boost in warmer weather and excess water, populations will boom
Explanation:
Yabbies will do best at a water temperature of between 12°C and 20°C but they will tolerate water that is a little colder or warmer. Complete immersion in water is not essential for life for the yabby. If its gills are kept moist (humid air is sufficient), it can absorb oxygen from the air and survive for many days out of water. To breed, however, it must be in water. With the water needed for breading and warmer weather used for breeding, population numbers for the Yabbies should rise.
What do Lycophytes look like?
A. Flowers
B. Pine Trees
C. Botry
Lycophytes look like Botry, the correct option is (C).
Lycophytes, also known as clubmosses, are a group of primitive vascular plants that have been around for over 400 million years. They are characterized by their small, herbaceous stature and spore-bearing structures that are arranged in club-shaped clusters.
Lycophytes have a unique reproductive structure called a strobilus or botryoid (botry). The strobilus is a cone-like structure that contains sporangia, which are structures that produce and release spores. The sporangia are arranged in a spiral pattern on the strobilus, giving it a distinctive appearance. They also do not resemble pine trees, which are a type of gymnosperm. Instead, they have small, scale-like leaves that are arranged spirally around the stem, giving them a moss-like appearance, the correct option is (C).
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Victor Ambros and colleagues identified lin-4 as the first miRNA in C. elegans. Their discovery of the miRNA followed which genetic approach? Mendelian genetic approach O reverse genetic approach both forward genetic approach and central dogma concept forward genetic approach O central dogma concept What is the most important discovery that led to the birth of a novel RNA field? The discovery of let-7 in round worms. let-7 is 100% conserved across animal phyla. The discovery of mutations in let-7 led to cancerous cells. All of the answers are correct. The discovery of let-4 in round worms. What is the research finding that supports the conserved function of let-7 across species? Mammalian let-7 homologues have overlapping functions. In mammals, the let-7 family is much larger than in C. elegans, consisting of thirteen closely related family members. None of the answers are correct. Mammalian let-7 members are expressed during mid- to late-stage embryogenesis, but they are not expressed during the earliest developmental stages or in embryonic stem cells. let-7 homologues play important roles in limb and brain development and neuronal differentiation in mammals. What is the most indicative clue that led Dr. Croce and his colleagues to connect let-7 miRNA family and human cancer? They mapped the location of 186 miRNA genes to a human chromosome. The let-7 gene led to uncontrolled cellular division and a loss of differentiation in certain cells in the worm. They mapped let-7g miRNA to a specific region of human chromosome 3. All of the answers are correct. Many let-7 homologues mapped within fragile sites of the chromosome that are often deleted in lung, breast, ovarian, and cervical cancers and cancers of the urinary tract. What is the research finding that explained the likely mechanism of let-7 miRNA's role on cancer formation? let-7 family members could directly inhibit RAS protein expression in cultured human cancer cells. O let-7 levels were down regulated and that RAS protein levels were up regulated in the human lung tumor tissue. The 3' UTRs of all three human RAS mRNAs, HRAS, KRAS, and NRAS, contain multiple binding sites for let-7 O All of the answers are correct. let-7 miRNA binds to the 3' UTR of let-60/RAS in C. elegans and down regulates its expression. The promising evidence to use let-7 miRNA as a therapeutic for cancer comes from the following approach: To express a mutant form of RAS in genetically engineered mice. To administer mutated let-7 miRNA into the lungs of mice with mutant form of RAS. To administer functional let-7 miRNA into the lungs of mice with mutant form of RAS. O All of the answers are correct. None of the answers are correct.
Victor Ambros and colleagues discovered lin-4 as the first microRNA (miRNA) in C. elegans using a forward genetic approach.
This approach involved studying the effects of mutations in the nematode's genome to identify genes involved in the regulation of developmental timing. Their discovery of lin-4 and subsequent research on let-7 in roundworms led to the birth of a novel RNA field, as these miRNAs were found to be highly conserved across animal phyla and play important roles in development and cancer.
The conserved function of let-7 across species is supported by findings such as mammalian let-7 homologues having overlapping functions, the let-7 family being larger in mammals than in C. elegans, and let-7 homologues playing important roles in mammalian limb and brain development and neuronal differentiation.
Dr. Croce and his colleagues connected let-7 miRNA family and human cancer through mapping many let-7 homologues within fragile sites of the chromosome that are often deleted in various cancers. Additionally, research findings showed that let-7 miRNA could directly inhibit RAS protein expression, and let-7 levels were downregulated while RAS protein levels were upregulated in human lung tumor tissue.
The promising evidence to use let-7 miRNA as a therapeutic for cancer comes from administering functional let-7 miRNA into the lungs of mice with mutant forms of RAS, as this approach has shown potential in preclinical studies.
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PLEASE HELP IMSTUCK
B cells are responsible for cell mediated immunity.
A. True
B. False
Answer:
True
Explanation:
B cells are involved in the humoral immune response and T cells are involved in the cell-mediated immune response. Class 1 MHC molecules are found on all uncleared cells and class 2 MHC molecules are found on macrophages, B cells, and activated T cells.
what general range of kd values would you expect for albumins and their natural ligands, compared to that for an antibody and its antigen? why?
Most antibodies have KD values in the low micromolar (10-6) to nanomolar (10-7 to 10-9) range. High affinity antibodies are generally considered to be in the low nanomolar range (10-9), with very high affinity antibodies being in the picomolar range (10-12).
Furthermore, Rich countries square measure putt away Coronavirus antibodies. Eighty million Covid-19 vaccination measurements have gone out anyway solely fifty five during a low compensation country. As the Covid continues to unfold all round the planet, with new unsafe varieties obtaining pace, the protection campaigns altogether the world's most un-lucky have not begun. within the meanwhile moneyed nations already vacciating have pre-purchased permission to the arrangements that may quite cowl their general populations on varied occasions over, by virtue folks, in line with a December the big apple Times assessment. This doesn't mean there square measure " dispersion focuses stacked with additional vaccination segments" restful around in success pay countries".But the countries with the sport plans have would like making areas for 2021, inferring that whether or not or not the countries create purchases currently, they may have to be compelled to keep it along for a seriously important time frame or maybe a year for transport. The result "major association compensation countries have 16 PF of absolutely the folks nevertheless at the current time holds sixty percen of the vaccination measurements, that are purchased." With this type of vaccination access, folks in wealthy countries can begin to envision their epidemics postponed down at some stage in ensuing year and life might recover a locality of its pre-pandemic musicalness. folks in unhappy countries in the meantime, might expertise no such profit. Infact, it'll presumptively invest in some chance for a few low compensation countries to try to start out whole fledged immunisation campaigns. "Most non-modern countries won't have wisespread induction to the shots before 2023 at the earliest." Rich countries have the benefit of new prosperity development 1st , whereas awful countries have to be compelled to stay by years or varied years, for it to stream them.
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How can you tell a eukaryotic cell from a prokaryotic cell just by looking at a photo like this?
1.What are the three main functions of the cell membrane?
2.What is the difference between a hydrophilic and hydrophobic?
3.How does the structure of the cell membrane help maintain homeostasis?
4.What does the structure of a cell membrane look like
Answer:
1:a)they keep toxic substances out of the cell
b)they contain receptors and Channells that allow specific molecules to pass between organelles,cells and the outside environment.
c)they separate vital bot incompatible metabolic
processes conducted within organelles
2.hydrophilic ( water loving) and hydrophobic (water fearing)
3.By regulating the materials that may enter and leave the cell.
4.a thin line
1. The three main functions of the cell membrane are:
To act as a barrier or boundary between the cell and its environment, controlling the movement of substances in and out of the cell.To maintain the shape and integrity of the cell by providing structural support.To facilitate communication between the cell and its surroundings through various membrane proteins and receptors.2. Hydrophilic refers to molecules that are attracted to water and can dissolve in it, while hydrophobic refers to molecules that repel water and are not soluble in it.
3. The structure of the cell membrane, which is composed of a phospholipid bilayer with embedded proteins and carbohydrates, allows it to selectively transport molecules and ions in and out of the cell, maintaining a balance of substances and preventing the buildup of harmful substances. The membrane also helps to regulate the cell's internal environment by responding to external signals and changing its permeability accordingly.
4. The structure of the cell membrane can be visualized as a fluid mosaic model, where the phospholipid bilayer acts as a fluid matrix with embedded proteins, carbohydrates, and cholesterol molecules. The hydrophobic tails of the phospholipids face inward, while the hydrophilic heads face outward towards the aqueous environments inside and outside the cell. The membrane also contains various types of proteins that serve different functions, such as transporters, channels, receptors, and enzymes.
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1) Compare and contrast the structure and functions of an STM with those of other types of microscopes
Answer:
yes I can ,,,,,,,,,,,,,,,,,,,,,,,,,,,
The height of bean plants depends on the amount of water they receive. Identify the independent variable de pendent variable and controlled variable in this sentence
The amount of water the bean plants receive is an independent variable.
Bean plant height is a dependent variable. Other variables that are maintained constant or unaffected constitute a controlled variable.
Factors Affecting plant growthsThe primary elements that affect how a plant develops are light, heat, water, humidity, and nutrients. It is crucial to understand how these obstacles affect plant development.
The main element influencing how quickly plants develop is temperature. Plants will progress through their growth stages more quickly in warmer climates. The growth pattern and appearance of a plant can also be altered by increased temperature.
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Where are you most likely to find ocean water with a high level of dissolved
gases?
A. Mid-latitudes in the Pacific Ocean
B. Near the equator in the Atlantic Ocean
C. Near the equator in the Pacific Ocean
D. Near the polar regions
HELP ITS DUE SOON
Seawater has many different gases dissolved in it, specially nitrogen, carbon dioxide and oxygen. It exchanges these gases with the atmosphere to keep a balance between the ocean and the atmosphere.
What is atmosphere?An atmosphere is defined as the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is comprises of about 78% nitrogen, 21% oxygen, and 1% other gases.
Dissolved oxygen and carbon dioxide are important for marine life. Marine plants use dissolved carbon dioxide, sunlight and water to make carbohydrates through the process of photosynthesis.
Cold water holds more gas than warm water and seawater with low salinity holds more gas than high salinity water. Deep water, that has a high pressure, holds more gas than shallow water.
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Small changes can add up over MULTIPLE GENERATIONS to make
A. the same species
B. new species
Answer:
b: new species
Explanation:
These changes are genetic mutations to their biological "code" meaning creating a new species would be possible.
Answer:
B. new species
Explanation:
Biological evolution is any change in the heritable traits within a population across generations.
1. The human genome contains roughly 1000 olfactory receptor genes, which allow us to detect and distinguish different odors. While only about one-third of these genes are functional, all of the genes may have arisen as duplications of a single ancestral gene. Put these steps in order to illustrate how this process could have occurred.
a. Mutations accumulate over time in the duplicate copy of the gene.
b. Chromosomes exchange uneven amounts of DNA.
c. The duplicate gene encodes a protein with a slightly different function.
d. Homologous chromosomes line up in the middle of the cell during meiosis. e. A chromosome obtains multiple copies of the same gene.
More than 400 different olfactory receptors (ORs) in the human body are used to detect odors, however there isn't a model that can forecast olfactory experience based on patterns of receptor activity.
In the human genome, how many genes are olfactory receptors?The biggest gene family in the mammalian genome is the olfactory receptor (OR) family, which contains 1483 loci in the mouse and 874 in the human (including pseudogenes).Even people can recognize and distinguish between at least 10,000 different odors. In animals, the nasal cavity's olfactory epithelium is where odors are detected. Here, olfactory neurons are arranged so that each one's sensory cilia face the nasal cavity.More than 400 different olfactory receptors (ORs) in the human body are used to detect odors, however there isn't a model that can forecast olfactory experience based on patterns of receptor activity.To learn more about human genome refer to:
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