Which best describes the relationship between two species and a niche?

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

Which statement best compares aerobic and anaerobic respiration

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird