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Gre4nikov [31]
3 years ago
7

Does anyone know what we need to do on here?

Biology
1 answer:
Lera25 [3.4K]3 years ago
3 0

Answer:

identify the variables

Explanation:

control:type of lemon used

dependent:whether apple slice turns brown at pH>2

independent:pH value

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Which class of macromolecules is primarily used as rapidly available energy sources by living thing?
Dmitry_Shevchenko [17]

Answer:

The correct answer is - carbohydrates.

Explanation:

The four significant groups of macromolecules found in living beings are carbohydrates, lipids, nucleic acids, and proteins. carbohydrates comprised of carbon, hydrogen, and oxygen molecules, generally in a proportion of 1 : 2 : 1.

Living things use carbohydrates as their main form of energy.  Carbohydrates are a class of macromolecules is essentially utilized as a quickly accessible energy source by living things.

Thus, the correct answer is - carbohydrates.

7 0
3 years ago
Please help!! for my physiology class...
Alex_Xolod [135]
13. Ear canal
14. Vibrates
15. Auditory ossicles (malleus, incus, stapes)
16. Cochlea
17. Auditory
18. Texture and temperature
19. CNS
7 0
2 years ago
At midpoint during pregnancy, you review beginning signs of labor with a patient. one of the beginning signs of labor you would
Brut [27]
<span>In the coming days (or even weeks) before labor, a woman will feel a change in position of the coming baby. The repositioning of the baby is a sign of it getting into a "head-first" position for the delivery process. A woman may feel a change in pressure, especially a lift of weight on her diaphragm making it easier to breathe.</span>
3 0
3 years ago
Carbohydrates are the primary source of energy for the human body,
Ipatiy [6.2K]

Answer:

If your body lacks enzymes that break down carbohydrates, it would be unable to get glucose molecules.

If you lacked the enzyme to digest proteins, you may not absorb enough amino acids.

Explanation:

Carbohydrates and proteins are the food materials that are used for the production of energy. Our body cannot absorb carbohydrate so it must be broken down into simpler substance such as glucose molecules by amylase, while proteins are broken down into simpler substances such as amino acids by pepsin enzyme.

7 0
3 years ago
A series of two-point crosses, involving 7 genes (a-g), were carried out, and the following recombination frequencies were obtai
levacccp [35]

Answer:

Explanation:

Genes with recombination frequencies(RF) of 50 assort independently and are not genetically links together but gene that have less than 50 RF are genetically linked.

The Linked genes included

a-d 12 c-e 26

a-g 4 d-g 8

b-c 10

b-e 18

Starting the order from the most tightly linked to the least

a-g 4, genetic distance is 4cM

d-g 8 genetic distance is 8cM

b-c 10 genetic distance is 10cM

a-d 12 genetic distance is 12cM

b-e 18 genetic distance is 18cM

c-e 26 genetic distance is 26cM

8 0
3 years ago
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