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miskamm [114]
3 years ago
6

20.

Biology
2 answers:
Elis [28]3 years ago
7 0

Answer:

answer is A :) hope this helps

34kurt3 years ago
3 0

Answer:

The correct answer is A.) Forms the plant cell wall.

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Why don't hybrids reproduce
nordsb [41]
An animal category is a gathering of creatures that can breed together that can deliver fruitful prosperity. 

Ligers, Mules, They aren't species, they are a mix of 2 animal groups subsequently the name is half and half, they can't recreate in light of the fact that, the two distinct species have two unique quantities of chromosomes. Species can duplicate inside of their own species, since every person inside of the species has the same number of chromosomes.

The crossover's can't imitate in light of the fact that sex cells would never be prepared as their chromosomes would not be right. The half breeds would never  happen in nature, they were made by man, I don't know how they fulfilled this, yet, at any rate, thats why the mixtures can't replicate. 
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Factors that influence the expression of human sexuality
mihalych1998 [28]
There can be a lot of factors that express sexuality. The origin would be its genes. The genetic make-up of the person what trait has passed on to an individual from his parents. Another factor is the environment. A person's sexuality can be influenced by social groups, home environment and from the media that he/she looks at.
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3 years ago
What are check points and why are they important in the cell cycle
pentagon [3]
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Cancer cells is an example of this, a cell goes rouge and starts doing it's function on it's own but outside of it's brother cells function slightly different turning into a growth or etc. The body thinks it is normal during the check body it's composed of the dna that passes this check.

viruses and other things don't pass this check and things like white blood cella come shut it down.

that's why doctors poison the area they find the cancer. to send white blood cells there to shut the area down not passing the check.
8 0
3 years ago
Why does a cell need to grow during interphase before it divides during mitosis? What would happen if cells did not grow before
dexar [7]

Answer:

the cell copies every oranelle in preperation for mitosis if it didnt go through interphase it woughd just split the organelle in half, interphase copies the dna and organelles .

Explanation: also the cell spends most of its life cycle in interphase.

7 0
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What structure allows the hypothalamus to have direct communication with the anterior pituitary?
ANEK [815]

Hypophyseal portal system allows the hypothalamus to have direct communication with the anterior pituitary.

The hypophyseal portal system is a network of blood vessels that connects the anterior portion of the gland and hypothalamus at the base of the brain. Two capillary beds, one in the median eminence and the other in the anterior pituitary, make up the portal system. Its principal job is to swiftly transfer and exchange hormones between the anterior pituitary gland and the hypothalamic arcuate nucleus.

The cortisol, androgens, and aldosterone hormones interact with anterior pituitary gland cells via travelling through the hypophyseal portal system. Hormonal signaling through the hypophyseal portal system enables connection between these two structures.

To learn more about hypothalamus and pituitary here,

brainly.com/question/28013779

#SPJ4

8 0
1 year ago
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