A. If all members of a species disappear from Earth, the species is said to be
extinct.
b. endangered.
threatened.
d. keystone.
C.

The model illustrates a process by which a substance is taken up by a cell

Set comes up with for examples of sound waves ocean wave light wave and hand wave which of tonys examples is not an actual scientific wave

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen