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Andre45 [30]
2 years ago
8

A. Describe the phases of menstrual cycle of each of the following.

Biology
1 answer:
disa [49]2 years ago
7 0

Answer:

you have stomach cramps it normally last for a week if you skip u might be pregnant

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Some regions of a polypeptide may coil or fold back on themselves. This is called _____, and the coils or folds are held in plac
zalisa [80]

Answer:

The options are

A. secondary structure ... hydrogen bonds

B. secondary structure ... peptide bonds

C. tertiary structure ... hydrogen bonds

D. primary structure ... covalent bonds

E. tertiary structure ... covalent bonds

THE CORRECT ANSWER IS A.

A. secondary structure ... hydrogen bonds

Explanation:

The secondary structure of a polypeptide shows the localized regions of its organised structure being upheld by hydrogen bonds among the major groups

-NH and C = O

At the same time, it inhibits the hydrogen bonds of the side chains from influencing the reaction process.

The polypeptide secondary structure shows the dexterity to curl or fold as sustained by the polypeptide chains.

8 0
3 years ago
What is the difference between the cerebral cortex of an adult and that of an adolescent?
Brut [27]

Answer: the part of the brain that does decision making is different because adolescents arent fully grown

Explanation:

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3 years ago
How does a endotherm and ectotherm react to the heat?
Vladimir [108]

Answer:

Ectotherms warm their bodies by absorbing heat from the surrounding environment, whereas Endotherms produce heat by their metabolic activities. • Ectotherms have large variations in normal body temperatures while endotherms maintain their body temperature in a fairly constant value

Explanation:

4 0
3 years ago
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The density of gas particles in a section of Earth’s atmosphere decreases. Which of the following is the most likely explanation
aalyn [17]

Answer:

<em>A. The air pressure in that section of Earth’s atmosphere decreased. </em>

Explanation:

In the free air, the density of the air diminishes as the air is warmed. On increasing the pressure, the density also increases. The air is packed. The density increments as pressure increments.

The thickness and density of air decline with the increase of height because of that the surface area of the Earth's climate diminishes with increase in height, along these lines gas particles can spread out.

The density of the air is most minimal at a high rise on a hot day when the pressure of the atmosphere is low.

7 0
3 years ago
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