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xxTIMURxx [149]
3 years ago
6

Explain the relationship between DNA replication and cell division.

Biology
1 answer:
inessss [21]3 years ago
3 0

Answer:

you need to replicate DNA in order for your cells to divide

Pls can i have brainiest.

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How many Hydrogen atoms can a Carbon atom covalently bond to?
enyata [817]
If we are talking about one single carbon atom, then 4 hydrogen atoms can be bonded to a carbon atom, because there is 4 electrons in the valence shell, and a valence shell needs 8 electrons in total, which causes the carbon to have 4 open bonds. A hydrogen has only one electron in its valence shell of 2, and needs one more to complete it. So, each hydrogen connects to 1 of 4 bonds on the carbon to complete the valence electron.
Fun fact, CH4 is methane.
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3 years ago
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When a nerve impulse travels from neuron 1 to neuron 2, neuron 1 is known as the _____. ​gated channel ​presynaptic neuron ​post
lord [1]

Answer;

-Presynaptic neuron

Explanation;

-When a nerve impulse travels from neuron 1 to neuron 2, neuron 1 is known as the presynaptic neuron.

-This is a neuron from the axon terminal of which an electrical impulse is transmitted across a synaptic cleft to the cell body or one or more dendrites of a postsynaptic neuron by the release of a chemical neurotransmitter.

- A postsynaptic neuron is a neuron to the cell body or dendrite of which an electrical impulse is transmitted across a synaptic cleft by the release of a neurotransmitter from the axon terminal of a presynaptic neuron.

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3 years ago
Water makes up a large percentage of the body's cells. For a cell to remain in homeostasis, there must be a
gavmur [86]

Answer:

B. Osmosis

Explanation:

8 0
3 years ago
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What is the purpose of the uninoculated control tubes used in the oxidation fermentation test? why is it necessary to use two co
Vitek1552 [10]

<u>Answer</u>:

1. The purpose of the uninoculated control tubes used in the oxidation fermentation test is to serve as basis of the medium for the color comparison and that it is sterile.

2. It is necessary to use two controls in order to illustrate the no color change (green color) under both aerobic and anaerobic conditions.

3. The purpose of the experiment is to determine if the organisms utilize the carbohydrate and thus is fermentative. This will result in a color change from green to yellow.

Thus, the medium in one tube is sealed with a layer of paraffin to prevent diffusion of oxygen.  This tube will show that the medium is unaffected by the lack of oxygen.

The second tube will allow the diffusion of oxygen. This tube will show that the medium does not change color naturally in the presence of oxygen. Thus, the color changes will be caused only by the fermentation process of the organisms.

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3 years ago
Explain the benefit of an increase in capillary-action to a hockey player.
Nesterboy [21]

Answer:

Explanation:

high muscle capillary density means a large muscle-to-blood exchange surface area, short oxygen diffusion distance, and high red blood cell mean transit time.Capillary action is important for moving water (and all of the things that are dissolved in it) around. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension.

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