How do frogs use their tongue to capture and swallow their food?

Answers

Answer 1

Answer: There tongues are long and sticky its tongue is located in the front of their mouths rather than the back, there tongue will shoot out and wrap around its prey the retrieve it and throw it down its throat.

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What role do the kidneys play in blood flow?

Answers

The kidney filters the blood, removing any waste products in the blood such as water, salts, urea and other products too.

I hope that's the answer you are looking for

The kidneys are the filtering devices of blood. The kidneys remove waste products from metabolism such as urea, uric acid, and creatinine by producing and secreting urine. Urine may also contain sulfate and phenol waste and excess sodium, potassium, and chloride ions. The kidneys help maintain homeostasis by regulating the concentration and volume of body fluids. For example, the amount of H+ and HCO3 - secreted by the kidneys controls the body's pH.

Select all that apply.Which of the following are methods of molecular biotechnology?
selective breeding
recombinant DNA
hybridization
cloning
induced mutations
DNA profiling

Answers

A couple of the methods of molecular biotechnology are cloning and recombinant DNA.

Answer:

All

Explanation:

The study of molecular basis (study of protein and nucleic acid) of any biological activity through intervention of laboratory technology is termed as molecular biotechnology

There are several methods of molecular biotechnology such as -

a) DNA cloning

b) Bacterial transformation

c) Chromosome integration

d) DNA polymerase & synthesis

e) Molecular hybridization

f) Polymerase Chain Reaction (PCR)

g) Expression cloning

h) Gel electrophoresis

i) Macromolecule blotting and probing

j) Arrays

Etc.

Hence, all are methods of molecular biotechnology

Select all that apply.Select the items that have a pH level between 5 and 8.

pure water

Great Salt Lake

saliva

ammonia

Answers

Pure water is very close to a pH of 7. The Great Salt Lake (from what I've read about) can range from 8.2 to 7.7 in different areas. Saliva is between 6.5 and 7.5. And ammonia has a pH of 11.
So the items that have a pH between 5 and 8 are pure water, saliva, and possibly the Great Salt Lake.

Answer:

Pure water and Saliva

Explanation:

Pure water has a pH of about 7

Your saliva has a pH of about 6

The Great Salt Lake has a pH of about 10

Household ammonia has a pH in between 11 and 12

What are social/ethical impacts of stem cells

Answers

Answer

A stem cell has both positive and negative ethic effect

Explanation

Some people think it is ethically wrong to change natural stem cell. According to such people stem cell should not be used for research or other purposes because it directly influences the life which is going to develop from a stem cell. Stem cell use has an ethically positive effect as it treats the number of inherited diseases and everyone has the right to get a child of gender which they want.

The structure of adenosine triphosphate (ATP) is shown here. Which statement best explains how energy stored in the chemical bonds of ATP can be released. A) Adenine is removed by hydrolysis from an ATP molecule. B) Electrons are removed by hydrolysis from an ATP molecule. C) A phosphate is removed by hydrolysis from an ATP molecule. D) A phosphate group is added to an ATP molecule with the addition of H2O.

Answers

C) A phosphate is removed by hydrolysis from an ATP molecule.

* ATP contains Adenine, Ribose sugar, and triphosphate group that contains 3 phosphates. When the third phosphate is broken, it is converted to ADP + P releasing a lot of energy.

The phosphate is removed by hydrolysis from ATP molecules. Thus, energy is stored in the chemical bonds of ATP and released during ATP hydrolysis.

Further Explanation:

Adenosine triphosphate (ATP) is the molecular currency used for energy transactions. The ATP energy is stored in the bonds between the terminal phosphate groups. These bonds are hydrolyzed by the enzymes to obtain energy for reactions. ATP is an energy caring molecule present in the living cell. It stores energy in the bonds between the phosphates produced by the breakdown of food molecules. It releases energy required for the chemical reaction, and hence, it is known as an effective energy donor.

ATP is made of three main structures:

Sugar (ribose)
Nitrogenous base (Adenine)
Three phosphate group

The main energy source in ATP is phosphate tail. The energy is stored in the bonds present between the phosphates groups and release when these bonds are broke down. This process is referred to as ATP hydrolysis in this addition of water occurs. When the one phosphate is removed from ATP, then it is converted into ADP.

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