Hemophilia is a condition in which blood does not clot naturally, and a person with hemophilia could bleed to death if injured. a hemophiliac must receive regular injections of what blood part to stay alive?

Why do bacteria thrive even in hostile environments

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except

What is a group of organisms that are closely related and share similar characteristics