Energy requires fuel in our case food
Answer:
Tiny cells make up everything in your body, groups of these cells will make body tissue and body tissue makes up all the organs in your body like heart and liver. These organs make up an organ system like the respiratory system which focuses on bring air in and around your body. With all these systems working together your body will work perfectly.
I hope that this is ok.
Answer:
The answer to your question is D, Sugar
The following are exclusively functions of the female reproductive system: nourishing a developing baby, protects the developing offspring, and serves as place where fertilization takes place.
I think the correct answer from the choices listed above is option A. When crossing-over takes place, chromosomes exchange corresponding segments of DNA. Corresponding genes on non-sister chromatids are exchanged at chiasmata. Hope this answers the question.