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GalinKa [24]
3 years ago
15

What are the two major differences between a plant cell and an animal cell?

Biology
1 answer:
Stolb23 [73]3 years ago
3 0
Plant cell have cell wall and animals cell don’t have

Plant cell have plastids and animal cell don’t have

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Nina was almost hit by a bus. However, she is okay and her parasympathetic system is responding accordingly. It is: Please choos
Ahat [919]

Answer:d) contracting her pupils and increasing secretion of stress hormones.

Explanation:

Peripheral nervous system consists of 3 major neuronal levels: vegetative (reticular formation and brain stem), limbic system and neocortical level. The RAS is the link between the brain and the spinal cord.

Brain stem consists of pons, medulla oblongata and mesencephalon. Brain stem is responsible for involuntary functions such as heart beat, respiration and vasomotor activity. Limbic system represents the emotional control center. It consists of thalamus, hypothalamus and pituitary gland and maintains homeostasis. Neocortical part processes sensory information and regulates emotional responses.

Autonomic nervous system (ANS) regulates visceral activities and organs (circulation, digestion, respiration and temperature). ANS has two divisions: sympathetic and parasympathetic nervous system.Parasympathetic nervous system regulates homeostasis via the release of acetylcholine (Ach). Parasympathetic nervous system is responsible for energy conservation and relaxation.

There are three stages in the stress response: immediate effects of stress, intermediate effects of stress and prolonged effects of stress.

7 0
3 years ago
Which of the following are types of homogeneous mixtures? (Select all that apply)
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Hot tea bcs it’s particles distributed non-uniformly ps this might not help yw
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The troposphereis the thickness of an equator
snow_tiger [21]
The troposphere is shallowest or narrowest at the poles, and deepest or thickest at the equator. At the geographic North and South Poles, the troposphere reaches only 4 miles high, while at the equator, it extends nearly 12 miles high.
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Witch carbohydrate provides energy for cows but only dietary fiber for humans?
iogann1982 [59]
Cellulose. Our bodies as humans lack enzymes to break the cellulose down.
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Read 2 more answers
3. The mechanism in which organisms best suited for their environment survive<br> and reproduce.
lys-0071 [83]

The mechanism in which organisms best suited for their environment survive

and reproduce <u>NATURAL SELECTION.</u>

<u></u>

Explanation:

When individuals in a population compete for resources or live in their environment, the individuals with the slightest advantage over the others have an increased chance of reaching maturity and  reproducing to passing down their genes to the next generations.

Natural selection works on the variations of the population to ‘select’ the best alleles of genes in the population that offer an advantage in ‘survival for the fittest’. This how natural selection fits a population to its environment. The greater the variation within a population, the higher its capacity to adapt to changes in the environment.

Learn More:

For more on natural selection check out;

brainly.com/question/1184863

brainly.com/question/875198

#LearnWithBrainly

5 0
3 years ago
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