What is the key to studying biology? ​

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Which excerpt from the land, part 4 best supports the claim that paul is a talented horseback rider? a/“figure that says more than anything else! now, i want to ride that stallion! " b/my daddy shook his head. "paul only rides horses he knows. ” c/? i glanced over at the other rider. the fellow was older than i, and had the weight of a man on him. d/a man out of alabama, man name of ray sutcliffe, told my daddy i was such a good rider, he wanted me to ride some races for him.

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?