What structure produces sperm in male humans

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air