Explain why humans lose more water on a hot day then on a cold day

Gabriel is at a stage where his body is changing physically; he is growing facial hair and building muscle. he is also just starting to make sperm. what is most likely gabriel’s age? 5 12 17 21

What part of the brain is highlighted in the diagram below?

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?