How does the nervous system work with the circulatory system?

Why is excretion necessary to maintain homeostasis?

Sort the examples by the type of diversity that they exhibit a park has 80 species of trees red, yellow, and orange bell peppers are all members of the same species individuals of the same lizard species have different mating strategies. five different bird species are at a bird feeder. genetic diversity species diversity

Adistinctive characteristic of mammals that is not observed in other vertebrates is