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Marrrta [24]
3 years ago
15

What happens when DNA replicates?

Biology
1 answer:
sp2606 [1]3 years ago
6 0

Answer:

DNA replication is the process by which DNA makes a copy of itself during cell division. The separation of the two single strands of DNA creates a 'Y' shape called a replication 'fork'. The two separated strands will act as templates for making the new strands of DNA.

Explanation:

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Number the following steps for the reproductive system of a self pollinating flowering plant in order from 1 to 5. Use the parts
Leviafan [203]

Answer:

3 Pollen tube forms and grows through the style

5 Sperm fertilizes the egg

1 Pollen is released from the anther

4 The pollen tube reaches the ovule within the ovary

2 Pollen sticks to the stigma

Explanation:

The process of double fertilization entails the fertilization of the egg by one sperm and that of two polar nuclei to produce the triploid endosperm tissue that nourishes embryo.

* The image describes the process in detail.

5 0
3 years ago
State one way the white blood cells protect the body from foreign microbes
ollegr [7]
 <span>Phagocytosis of the microbes that enter the body or tissues. Also lymphocytes build specific antibodies against microbes.</span>
7 0
3 years ago
Read 2 more answers
Give importances of locomotion in man
zheka24 [161]

Answer:

Locomotion is essential for  various internal and external bodily functions

Explanation:

Locomotion is the art through which our body exhibit various functions and also escapes various condition of environment.  

For instance –

a) Through movement of limbs, actions such as running, walking, jumping, crawling, swimming, etc are performed.

b) Movement of body parts and joints helps in taking different comfortable postures.

c) Even some body parts move even when it is not essentially vital for the function being performed such as movement of eyeball and external ear while swallowing food.  

d) Movement of nutrients and blood with in the circulation system and digestive system.

e) Movement of sense organs when exposed to extreme environmental conditions.

7 0
3 years ago
A person who is optimistic:
Serggg [28]

Answer:A

Explanation:

because optimistic people are confident about their future

7 0
3 years ago
Read 2 more answers
Which statement about positive feedback regulation is accurate?
GenaCL600 [577]

Answer:

Answer is B. Positive feedback regulation can generate an abrupt, all-or-none response in which the cell moves from ignoring a signal to responding to it very strongly.

Explanation:

Positive feedback can be described as an example of feedback, which is a natural mechanism that amplifies the action of a system.

It can be better be explained further, as a situation whereby the blood pressure decreases and the response of the body also makes or causes the blood pressure to decrease the more.

Other examples of a positive feedback also include blood clotting, ripening of fruits , uterus muscle contraction, resulting to the stretching of the uterus during pregnancy.

6 0
3 years ago
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