Mutation is random because there is really no way of knowing whether a child will inherit it, whereas natural selection is predisposed in either parent.
1.Artificial
c.blood and cells
c.presence or absence of a particular plasma
The correct answer is this one: "A.When actin filaments are pulled toward the center of the sarcomere, the fiber shortens." The statement that accurately describes the way in which a muscle moves is when actin filaments are pulled toward the center of the sarcomere, the <span>fiber shortens</span>
Pepsin digests potato because it mainly contains starch
The correct answer is:
Nucleus
Prokaryotic cells do not contain <u>a nucleus</u>.