A(n) is a value that is defended in order to maintain homeostasis. a. set point b. metabolism c. extrinsic balance d. emotion

Modern whales developed their traits through natural selection what occurs during the process of natural selection

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

In which layer do organisms on earth love?