Why does the lower epidemia have more stomata than the upper epidemia of a leaf

1 answer:

8 0

The explanation lies in how the stomata works. They regulate any gasses that passes trough them. When the temperature is too hot, it will close to conserve water vapor but this will block CO2 coming in also. Therefor plants don't want to have their stomata closed all the time nor opened all the time. Sunlight hits the top surface of leaves. If many stomata were to be located on the top, the plant would loose much of its water and when the stomata closes to conserve water, it won't get as much CO2. Therefor for most plants, the stomata stay on the bottom where the temperature is a bit cooler. Also it is protected from the wind since wind can cause evaporation of water. I hope this Helps c:

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You played hard in Pe today and didn’t get a chance to rehydrate after class. You fell tired and sluggish. How does your body re

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Answer:

Respiratory system
Nervous system
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Explanation:

During excessive hard work or sports, the respiratory system acts to provide sufficient oxygen for energy supply (ATP) - a process takes place in mitochondria. At the very beginning, the respiratory system is active. If the person doesn't intake sufficient water, he will feel tired because of heavy breathing that increases body temperature and affects metabolic reactions. A supply of water would help decrease the respiration need and so support other systems.

The nervous system (hypothalamus) regulates the body temperature which is necessary for metabolic reactions taking place within the body, i.e. homeostasis. During and after exercise, the water intake was not sufficient, this means that the hypothalamus would work to maintain the temperature as well as other metabolic mechanisms. In the case of less water intake, the nervous system would be in stress.

The circulatory system acts to transport blood and oxygen to all parts of the body. During sports activities, the oxygen supply would be high to maintain energy supply. This takes place with the combined action of the circulatory system and respiratory system. For optimal functioning, the circulatory system needs fluids (water) intake because sufficient water is already lost during sports.

The integumentary system is the system that directly protects the body from damages including dehydration. Therefore, in this case, it will be highly active.

The endocrine system consists of glands that produce hormones to control body metabolism. The body metabolism, as mentioned before, is driven through water availability. The reduced water in the body would also put the endocrine system under pressure.

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Which kind of microscope is best for observing the movement of a live cell?

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Answer:

Compound

Explanation:

everything else only produces a single image also I've used compound microscopes to observe living things

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When a plant grows toward or away from a stimulus, it’s called a tropism.

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