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Artyom0805 [142]
2 years ago
7

Can anyone help giving 5 stars

Biology
2 answers:
anyanavicka [17]2 years ago
4 0
The answer is the function of living things are composed of cells
Alexxx [7]2 years ago
4 0

Answer:

I think that it's the 2nd option

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True or false On average, about 10 percent of the energy available within one trophic level is transferred to the next trophic l
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True

Explanation:

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3 years ago
Two hydrogen isotopes combine to form a helium atom and a great deal of energy. What process is being described?
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Nuclear fusion.

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3 years ago
How our brain changes duriang the whole life?
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3 years ago
On a backpacking trip, Kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 Calories. At the school tra
emmasim [6.3K]

Answer:

A. If the aerobic pathway—cellular respiration—cannot meet the energy demand, then the anaerobic pathway—lactic acid fermentation—starts up, resulting in lactic acid buildup and "oxygen debt."

D. The rate of energy demand determines how the muscles will obtain energy, either from cellular respiration or from lactic acid fermentation if not enough oxygen is present.

Explanation:

It is important to consider that Kenny hikes all day but at a steady pace, whereas Janelle runs very fast. So Kenny's case, the supply of oxygen is sufficient to maintain aerobic respiration within the muscle cells. During this process only CO2, Water, and ATP are produced; therefore, there is no oxygen debt. We should keep in mind that the body shifts to anaerobic metabolism only when the supply of oxygen is limited.

In Janelle's case, running fast would need energy at higher rates and the supply of oxygen would not be sufficient to generate a high amount of ATPs. Therefore, to compensate for this deficiency, cells will start fermenting glucose to lactic acid and produce ATP and maintain energy demands. This lactic acid causes fatigue and this is why Janelle has aching and breathing hard. Breathing hard is also automatic reflux to inhale more oxygen and meet oxygen demands but even breathing hard would not be able to make it and the body will shift to anaerobic respiration automatically.

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3 years ago
Trap and keep warm air next to birds bodies
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Im pretty sure it is their feathers not for sure, but i think thats right
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