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Semmy [17]
3 years ago
7

Which of the following best describes how the

Biology
1 answer:
Margaret [11]3 years ago
7 0

Answer:

A. Chemical energy is used by each of the organisms in the food pyramid, resulting in less energy as it moves up the pyramid.

Explanation:

Green plants are autotrophs. They manufacture their own food through photosynthesis. Through sunlight, the food manufactured has chemical energy stored in them which is made available to the heterotrophs. Heterotrophs are mainly consumers, while autotrophs are producers.

Heterotrophs rely on autotrophs for their nutrition.

Thus, as consumers above at the top of the pyramid feeds on those below, the stored energy is being transferred up and used. These energy reduces as it goes up right to the top of the pyramid.

The best statement that describes how chemical energy is transferred up the pyramid is: "A. Chemical energy is used by each of the organisms in the food pyramid, resulting in less energy as it moves up the pyramid."

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  1. Respiratory 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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