Answers
Water is a unique molecule thanks to its chemical properties. Since water has a dipole (negative in the Oxigen side, positive in the Hidrogens) it is able to create weak electrostatic interactions between H -O of diferent water molecules (also called "Hidrogen bridges"). This weak interactions, are scaled in strenght when you consider the total amount of water molecules. Thus, we can conceive water as an "electrostatic mesh", comprised of this electrostatic interactions, which allow lubrication and cohesion between the molecules.
Related Questions
What cell makes up loose connective tissue?
Answers
Answer:
ppppppppppppppppppppp
Answer:
collagen and elastic fibres.
Explanation:
fibers and other components of the connective tissue matrix are secreted by fibroblasts
how does the latitude of a region affect its climate
Answers
If a food has many calories relative to its physical size, it's considered to have a
A. high calorie density.
B. low calorie density.
C. high fat density.
D. low fat density.
Answers
Answer:A
Explanation: High-calorie density per its physical size
Answer:
A is the answer because it is high in calories density
11. A person who has rickets might need
more foods from which two groups?
Answers
In addition to getting enough vitamin D, people with rickets may also need to take calcium and phosphorus supplements. These supplements can help to improve bone health and prevent further bone loss.
Here are some specific foods that people with rickets may want to include in their diet:
Milk
Yogurt
Cheese
Salmon
Tuna
Sardines
Eggs
Fortified orange juice
Fortified cereal
Tofu
Green leafy vegetables
Fortified bread
Fortified pasta
It is important to talk to a doctor or registered dietitian about the best way to manage rickets. They can help to create a personalized diet and supplement plan that will meet the individual's needs.
Normal cells become cancer cells when
a. cells do not respond normally to control mechanisms.
b. regulation of cell growth and division is lost.
cells continue to divide without passing through G1.
d. All of the above
Answers
simbio, end of simploid experiment section. after testing just one variable (shamworm parasite or zapweedz herbicide), you can determine which one (herbicide or parasites) is causing the illness.
Answers
One cannot identify whether a factor—herbicide or parasites—is causing the sickness after examining just one variable (the shamworm parasite or the zapweedz herbicide). So, the given statement is false.
Herbicides or weedkillers are substances that are used to control, kill or inhibit the growth of undesired plants. A parasite is an organism that gets attached and lives with a large organism or host. They derive their nutrients from the host.
In an experiment, the variable is something the researcher change or modify to record the result. The two key variables used in an experiment are (1) the dependent variable and (2) the independent variable.
In the given situation, to determine the cause of an illness we can't just measure one variable and conclude the result. Because two or more variables might have caused illness or simploid sickness. We can't just tell by measuring one variable and concluding the result. Therefore, the given statement is false.
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how are chromosomes classified?
Answers
Answer:
chromosome are classified in to four part metacentric, submetacentric, acrocentric, and telocentric
3. Fossil fuels, such as coal, are used as energy resources. Answer the following questions
about the consumption rate of coal.
PLEASE HELP
Answers
Fossil fuels, like coal, are natural resources that are used for energy production. The burning of coal is a primary source of electricity production worldwide. However, this method of energy production comes at a cost to the environment and the world’s economy. The following are the questions about the consumption rate of coal.
What is the consumption rate of coal-The consumption rate of coal depends on several factors such as population growth, the price of coal, energy demand, technological advancements, economic policies, environmental regulations, and the availability of alternative energy sources. According to the International Energy Agency (IEA), global coal consumption was approximately 7,726 million tonnes of coal equivalent (Mtce) in 2019. China, India, and the United States are the largest coal consumers in the world. Coal consumption in China alone accounted for more than 50% of the world's total coal consumption. How much coal does the world consume per day-According to IEA, the world consumes about 21.2 million tonnes of coal per day, which is equivalent to 7.7 billion tonnes of coal per year.
This consumption rate is expected to decline in the future as more countries shift towards renewable energy sources.Is the consumption of coal sustainable-No, the consumption of coal is not sustainable. Coal is a non-renewable resource, which means that it is limited in supply and will eventually run out. Additionally, the burning of coal releases harmful greenhouse gases into the atmosphere, contributing to global warming and climate change. The mining of coal also has a negative impact on the environment, including deforestation, water pollution, and soil degradation. The consumption of coal is also not economically sustainable in the long run as it is becoming increasingly expensive to extract and process coal. In conclusion, while coal consumption has played a significant role in the global energy mix, it is not a sustainable energy source, and the world should focus on transitioning to cleaner and more renewable energy sources.
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D
4) This diagram shows a food chain from a desert ecosystem in Arizona. The arrows show
how the matter eaten by organisms moves through the food chain.
western
diamondback
rattlesnake
Select each organism below that is a primary consumer in this food chain.
brittlebush
pallid-winged
grasshopper
ubmit
brittlebush
grasshopper mouse
red-tailed hawk
grasshopper
mouse
pallid-winged
grasshopper
red-talled
hawk
western diamondback
rattlesnake
Question
answere
28
Time
elapsed
PAUSE
Challeng
Stage 3 of
Get 5 corred
in a row
Answers
The primary consumers in the food chain are the organisms that eat the producers, which in this case are the brittlebushes. The primary consumers are the pallid-winged grasshoppers.
The other organisms in the food chain are secondary consumers (grasshopper mouse), tertiary consumers (red-tailed hawk), and apex predators (western diamondback rattlesnake).
Here is a diagram of the food chain with the primary consumers highlighted in green:
brittlebush (producer)
----------------------->
pallid-winged grasshopper (primary consumer)
----------------------->
grasshopper mouse (secondary consumer)
----------------------->
red-tailed hawk (tertiary consumer)
----------------------->
western diamondback rattlesnake (apex predator)
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Match the following enzymes of DNA replication with their respective functions:
Answers
DNA polymerase, DNA ligase, RNA primase, DNA helicase
what is DNA replication?
The biological process of making two identical copies of one DNA molecule is called DNA replication. Every living thing has a DNA replication process, which is the most crucial component of biological inheritance.
The replication of DNA is aided by enzymes.
DNA helicase - DNA helicase breaks the hydrogen bonds between base pairs, separating the strands into the replication fork, a Y-shaped structure.RNA primase: This enzyme creates short RNA primer sequences. The synthesis of DNA is initiated by these primers.The new strand is made through a process known as elongation, which is carried out by DNA polymerase.Okazaki fragments are joined by DNA ligase (small fragments formed during the replication of double-stranded DNA).To learn more about DNA replication https://brainly.com/question/21265857
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Plants must break down into sugar cells to obtain energy from the food that is produced.What is this process called?
Answers
Answer:
Photosynthesis
Explanation:
The process a plan uses to make food for itself is photosynthesis. And the reverse is cellular respiration.
Did the benedict test for reducing sugar net a positive or negative result for milk
Answers
Answer:
I think it is a negative result.
Explanation:
What is a plasmid? When is it used? Which organism uses it?
Answers
Plasmid:
-a genetic structure in a cell that can replicate independently of the chromosomes
-typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan
-they typically have a small number of genes and can be passed from one cell to another
-often, the genes carried in plasmids provide bacteria with genetic advantages, such as antibiotic resistance.
When is it used?
-Plasmids are much used in the laboratory manipulation of genes.
-Scientists use recombinant DNA methods to splice genes that they want to study into a plasmid.
-When the plasmid copies itself, it also makes copies of the inserted gene.
Which organism uses it?
Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes.
Which variables will be controlled throughout the experiment trials so that they do not effect the results? (Select all that apply.....there are TWO correct answers...)Question 8 options:temperaturenumber of fishlight colornumber of Elodea plants
Answers
Solution:
Based on the lab guide provided, it is stated that the temperature and color of the light should be controlled because these are not variables they want to test at this time.
So that, we can conclude that the correct options are:
TEMPERATURE
and
LIGHT COLOR.
Compare the size of force due to static,sliding and rolling friction between two surface
Answers
Option 3 is correct, i.e. Rolling friction is smaller than the sliding friction.
● The opposing forces that are experienced by objects when moving against each other are termed as friction.
● Static friction, sliding friction and rolling friction are the resistances experienced by stationary, moving and rolling objects respectively.
● Since static friction keeps an object stationary, it is the maximum.
● Rolling friction, on the other hand, provides the least resistance as the contact time and contact area between the two surfaces is the least.
Therefore, static friction is the strongest form of frictional force followed by sliding friction which is weaker than static but stronger than rolling friction.
Having a weakness along a specific plane will allow a mineral to?
A. magnetize
B. cleave
C. fracture
D. streak
Answers
Explanation:
split or sever (something), especially along a natural line or grain.
5. If a galaxy is moving away from us, what would happen to the wavelengths of light that we see? How
would that change what we see?
Answers
The visible light spectrum. Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. ... When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.
Neil travelled 36km at a speed of 8km/h. Grant travelled 48km at a speed c a) Whose journey was quickest? b) By how many mins?
Answers
a) If Grant's speed is less than 10.67 km/h, then Neil's journey was quicker. If Grant's speed is greater than 10.67 km/h, then Grant's journey was quicker.
b) If Grant's speed is 10 km/h, then Neil's journey was quicker by 198 minutes (or 3 hours and 18 minutes).
a) To determine whose journey was the quickest between Neil and Grant, we need to find the time taken by each of them. We can use the formula: Time = Distance/Speed
For Neil, Distance = 36km and Speed = 8km/h. Therefore, Time taken by Neil = Distance/Speed = 36/8 = 4.5 hours
For Grant, Distance = 48km and Speed = c. Therefore, Time taken by Grant = Distance/Speed = 48/c
Now, we need to compare the time taken by Neil and Grant. If Neil's time is lesser than Grant's time, then Neil's journey was quicker. If Grant's time is lesser than Neil's time, then Grant's journey was quicker.
So, we have 4.5 < 48/c
Multiplying both sides by c, we get:
4.5c < 48
Dividing both sides by 4.5, we get:
c < 48/4.5 = 10.67 km/h
b) To find the time difference between Neil and Grant, we need to subtract the time taken by Neil from the time taken by Grant. So, we have:
Time taken by Neil = 4.5 hours (calculated earlier)
Time taken by Grant = Distance/Speed = 48/c
Therefore, Time difference = (48/c) - 4.5
We can convert this into minutes by multiplying by 60:
Time difference in minutes = 60[(48/c) - 4.5]
We know that c < 10.67 km/h (from part a). Let's assume c = 10 km/h (just for calculation purposes). So, we have:
Time difference in minutes = 60[(48/10) - 4.5] = 198 minutes
Note: The actual time difference depends on the value of Grant's speed.
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Which of the following models represents an atom that is most likely to form a cation with a charge of +1?
Answers
The atom represented by the model with one valence electron in its outermost shell is most likely to have the lowest ionization energy and hence is most likely to form a cation with a charge of +1.
The atom that has the lowest ionization energy is the one which is most likely to form a cation with a charge of +1. Ionization energy is defined as the energy required to remove an electron from an atom or ion in the gaseous state. Therefore, an atom with a low ionization energy requires less energy to remove its outermost electron and form a positively charged cation.
Among the models of atoms given, the atom represented by the model with one valence electron in its outermost shell is most likely to have the lowest ionization energy. This is because the valence electron is loosely held by the nucleus due to its large distance from it. As a result, it requires less energy to remove the outermost electron and form a cation with a charge of +1.
For example, Lithium (Li) has one valence electron in its outermost shell and has the lowest ionization energy among the elements in the first group. This makes it easy for Lithium to lose its valence electron and form a cation with a charge of +1.
In summary, an atom with a low ionization energy requires less energy to remove its outermost electron and form a positively charged cation.
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Note: The complete question is- Which of the following models of atoms represents an atom that has the lowest ionization energy, and is therefore most likely to form a cation with a charge of +1?
Create a flow chart to represent
and describe the process of urine
formation in the kidneys
Answers
Start -> Filtration -> Reabsorption -> Secretion -> Concentration -> Urine
Description of the process:
1. Filtration: The process of urine formation begins with the filtration of blood in the glomerulus, a network of small blood vessels called capillaries. The glomerulus filters blood by forcing fluids and small molecules through the walls of the capillaries and into the Bowman's capsule.
2. Reabsorption: The filtered fluid then moves through the proximal tubule of the nephron, where essential substances such as glucose, amino acids, and salts are reabsorbed back into the bloodstream.
3. Secretion: In the next stage, the filtrate passes through the loop of Henle, where more water and electrolytes are reabsorbed. This is followed by the distal tubule where hydrogen ions, potassium ions, and some drugs are secreted into the filtrate.
4. Concentration: In the final stage, the filtrate reaches the collecting duct, where water is reabsorbed, and the urine is concentrated. The concentration of urine is controlled by the hormone ADH (antidiuretic hormone), which regulates the amount of water that is reabsorbed into the bloodstream.
5. Urine: Once the urine is formed, it is transported from the kidneys to the bladder, where it is stored until it is expelled from the body during urination.
End of the process.
IN YOUR OWN WORDS , summarize what Creutzfeldt-Jakob disease is, how it is transmitted, treated, and found.
Answers
According to the research, Creutzfeldt-Jakob disease is an infectious disease of the CNS, produced by altered prion proteins that causes advanced dementia and leads to a rapid decrease in movement.
What is Creutzfeldt-Jakob disease?It is an encephalopathy associated with a spongiform degeneration of the central nervous system (CNS) and is related to the accumulation of altered prion proteins, that is, they have lost their normal function but have acquired the ability to transform the normal form into a pathological one.
In this sense, its transmission can be horizontal or vertical and its symptoms include:
DementiaMemory impairmentMuscle coordination problemsOn the other hand, its treatment is aimed at relieving symptoms such as involuntary muscle contractions, since it is considered to lead to death given that altered prion proteins are extremely resistant to commonly used disinfectant and sterilizing treatments.
Therefore, we can conclude that according to the research, Creutzfeldt-Jakob disease is an infectious disease of the CNS, produced by altered prion proteins that causes advanced dementia and leads to a rapid decrease in movement.
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using a similar flow chart, develop a dichotomous key for the seven organisms listed in the chart at question 23.
Answers
The use of dichotomous keys is how they earn their name, and they are rather simple to utilize.
ChartDichotomous literally translates to "two branches," which is highly apt considering that the key offers two options at each step. The answers you give to each question—yes or no—will determine how you move on. This is comparable to how you would follow a flowchart. You are guided to the next option as you proceed through each step based on both that answer and the ones that came before it.As an illustration, if you discovered a snake invisit side your home, you might want to identify it right away to find out whether it is poisonous or not and how dangerous it is.For more information on dichotomous key kindly visit to
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Animals eat plants and use the glucose for growth, repair, and ______. During ____________ They use ________ released by the plants
Answers
Answer:
Animals eat plants and use glucose for growth, repair, and energy. During sickness They use oxygen released by the plants
Explanation:
Animals eat plants and use glucose for growth, repair, and energy. During sickness they use oxygen released by the plants.
Why animals eat plants?
Animals depend on others specially on plants for their food and they are not able to prepare their own food like plants in the presence of sunlight by the process of photosynthesis. The reason animals are known as hetrotrophs because they depends upon others for their food.
The process of food manufacturing in the plant has to be done through the photosynthesis and the plants are known as the autotrophs as they are the producers.The reason animals are known as hetrotrophs because they depends upon others for their food.
In the process of photosynthesis the reactant have at least 6 carbon dioxide molecules and six water molecules, and the light energy has to be converted into the chemical energy due to the presence of chlorophyll.
Therefore, Animals eat plants and use glucose for growth, repair, and energy. During sickness they use oxygen released by the plants.
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What is the optimal pH for Gastric Protease?
Answers
Answer:
what grade is this again
What do the pancreas, liver, salivary glands, and gall bladder have in common?
They are all involved in mechanical digestion.
They are all accessory structures.
They all digest carbohydrates.
They all release digestive enzymes.
Answers
Answer: They are all accessory structures.
Reason: They are not apart of the digestive tract.
The liver doesn't release digestive enzymes, it does make some though.
Mechanical Digestion breaking down the food into little pieces via the teeth and saliva .
Carbohydrates are digested not in any of these, but rather in the small intestine.
Answer:
b
Explanation:
They are all accessory structures.
Can I get the answer pleaseeeeee
Answers
Answer:B
Explanation:
because they have the same rna molecuules
In a plant in which fuzzy leaves (f) are dominant over smooth leaves (), which of the following crosses will produce only offspring with smooth leaves.
a. ff x ff
b. ft x ff
c. ft * ft
d. FF * FF
Answers
Answer:
a
Explanation:
ff x ff is the cross that will produce only offspring with smooth leaves.
What is cross?Cross means breeding of parents to produce offspring.
What is produce?Produce means to generate.
What is offspring?Offspring is the product of a cross.
f is the recessive allele of smooth leaves whereas F is the dominant allele of fuzzy leaves.
So the cross ff will give all smooth leaves where as FF will give all fuzzy leaves.
Hence the correct option is (a).
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Maria visited the mountains in Wyoming and became interested in the different ways that mountains and valleys form. How do mountains and valleys develop from a series of normal faults?
A. A footwall slips down to form a valley at a converging plate boundary. Rock on either side of the valley becomes the mountains.
B. Walls of rock grind past each other in opposite directions. This pushes one side up above the other to form the mountains.
C. Compression causes rock to fold and bend, but not break, in the middle of a plate. The rock that folds upward becomes a series of mountains.
D. A hanging wall slips down at a diverging plate boundary. The slab of crust that falls forms a valley, and the slabs on each side form mountains.
Answers
Answer:
A
Explanation:
Mountains are usually formed at what are called convergent plate boundaries, meaning a boundary at which two plates are moving towards one another.
Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answers
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
The purpose of Mendel's experiments with dihybrid crosses was to determine
whether:
A. pea plants had traits with more than two alleles.
B. pea plants produce haploid cells or diploid cells.
C. two recessive traits could be passed to offspring.
D. two traits affect the inheritance of each other.
Answers
The purpose of Mendel's experiments with dihybrid crosses was to determine whether two traits affect the inheritance of each other. Therefore, the correct answer is D. Mendel wanted to understand how different traits, controlled by separate genes, are inherited and whether they show any relationship or influence each other in the inheritance patterns. This was done by crossing pea plants that differed in two traits, such as seed color and seed texture, and observing the patterns of inheritance in the offspring.