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Shalnov [3]
3 years ago
14

Please help me write this!! 20 points!!!!

Biology
1 answer:
White raven [17]3 years ago
4 0

Answer:

The diagram shows how how plants use carbon dioxide, water and sunlight to create glucose and oxygen, this process is called photosynthesis. It also shows how the mitochondria in animal cells create energy, this process is called respiration.

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Activation of the sympathetic nervous system A. increases salivation and increases blood pressure. B. decreases salivation and i
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Answer:

B. decreases salivation and increases blood pressure

Explanation:

The sympathetic nervous system is part of the autonomous nervous system which controls involuntary responses of the body such as salivation and blood pressure.

The sympathetic nervous system  is majorly responsible for body actions that are produced when threat is perceived. It generates responses referred to as the “fight or flight” response. Examples of such responses include, increased breathing, increased high blood pressure, dilation, decreased salivation, etc.

Activation of the sympathetic nervous system would result in rise in the blood pressure as can be witnessed by someone whose body has perceived a threat or reacting to a stressful situation.

The control of salivary production by the sympathetic nervous system  leads to the release of noradrenaline which acts on certain receptors that results in decrease in the production of saliva. This is evident in a person that is facing a threat also.

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5. Four different types of cells are shown below.
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Answer:

All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell;

Explanation:

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Compare how the surface area for gas exchange is increased in gills and lungs
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