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garik1379 [7]
3 years ago
8

Nonrandom mating :

Biology
1 answer:
algol [13]3 years ago
3 0

Answer:

Answer is A. Affects genotypic frequencies and not allelic frequencies.

Explanation:

Non random mating is when an individual organism prefer to mate with another organism of the same genotype or different genotype.

There are some things that make this to happen. It may be based on physical accessibility or characteristics among others.

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4. In quiet breathing, a. None of the options is correct b. Inspiration and expiration are both passive processes c. Inspiration
Alina [70]

Answer:

d. Inspiration involves muscular contractions and expiration is passive

Explanation:

Breathing is the process of taking air in and out of the body or more specifically taking oxygen in and moving carbon dioxide out of the body. Our respiration rate is regulated by medulla in brain and alter according to our activities.

Quiet breathing is slow, relaxed breathing that lowers the blood pressure, slows the heart rate beat and calms the mind. It is done while sitting or maintaining a proper posture that require less energy and opposite to deep breathing that done during energetic activities like running.

Diaphragm is the main muscle movement during quiet breathing, which must contract to carry out it because its contraction draw the air to alveoli. So inspiration involves the contraction of muscles but the expiration is passive in quiet breathing. The reason is that due to the relaxed elastic muscles, the lungs and chest wall regain their resting volume according to the functional residual capacity.

8 0
3 years ago
Which is an example of a parasite and host relationship?
Ber [7]

Answer:

Tape worm and a human

Explanation:

This is because a tape worm is a parasite that destroys and eats the nutrients in the human intestines to live while killing the human.

7 0
3 years ago
Read 2 more answers
There are ____ amino acids? <br><br> 1<br> 10<br> 20<br> 40<br> 50<br> 100<br> an infinite number of
zhuklara [117]

Answer:

there are 20 amino acids

6 0
3 years ago
An area in a forest was cleared to build a road. Which two of the following will be likely effects on the ecosystem
Montano1993 [528]
1. It can destroy the boidiversity. 2. The chemical input from the roads are washed into the water. 3. Also it can degrate the air quality. Hope this helps!!!
6 0
3 years ago
What is a food chain/6067896/d633c784?utm_source=registration
Vsevolod [243]
Food chain-  is a diagram that shows how food energy moves from one organism to another in an environment. It begins with the plant life and ends with animal life. Plants get eaten by animals  and animals eat other animals. 
7 0
3 years ago
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