Answer:
It is circulatory system and the digestive system.
Explanation:
Answer:
NADH and FADH2 carry electrons to specialized cell membranes,where they are harvested to create ATP.Once the electrons are used, they become depleted and must be removed from the body. Oxygen is essential for this task. Used electrons bind with oxygen; this molecules eventually bind with hydrogen to form water
Explanation:
I hope it helps
We feel hotter in summer than in winter because the temperature is generally higher than in winter.
<h3>
What are seasons?</h3>
There are three seasons on earth namely winter, summer, and rainy season. In the winter season, the temperature is cold and during summer the temperature is higher.
Timing and characteristic of season depend upon the location of the earth. The time of a year region experience season depends on it is northern hemisphere or southern hemisphere.
The southern hemispheres experiences winter while northern hemisphere experiences summer. The cycle of seasons is caused by earth's tilted towards the earth. The planet rotates around an axis.
Therefore, We feel hotter in summer than in winter because the temperature is generally higher than in winter.
To learn more about seasons, refer to the link:
brainly.com/question/19009677
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I believe it is Nitrogen dioxide
Maybe biosphere and geosphere?