The organisms that form the base of most open-ocean food webs are
a. fish.
b. coral.
c. plankton.
d. kelp.

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

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