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The answer is D. unicellular.
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~Ruru
The revolution of earth around the sun and the tilt of earth’s axis cause the changing of seasons. TRUE
<u>Explanation:</u>
Earth is slightly tilted at its axis. This causes a change in the amount of sunlight reaching each hemisphere. Due to the tilt one hemisphere will be closer to the sun while the other will be at a greater distance. When the earth revolves around the sun , the hemisphere that is closer to the sun changes.
The hemisphere closer to the sun will experience summer and the hemisphere away from the sun will experience winter.
What possibly aided in the adaptation of snakes would be not being able to get food or not being able to Undergo difficult tasks of protecting itself.
There are three processes of aerobic cellular respiration; glycolysis, the Kreb's cycle and the electron transport train. The electron transport train synthesises the most ATP.