Answer:
Killer T cells release enzymes that help destroy invading foreign matter (antigens), Helper T cells, on the other hand, stimulate another type of lymphocyte known as B cells. B cells produce antibody, which is a protein made in response to a specific antigen.
Natural selection is where positive traits survive more, allowing those to become more common. Mutation is where radioactivity changes genes in a random way. Natural selection allows positive mutation to become more common. Adaptation is where natural selection works for a species specifically more a new habitat.
C there your answer i hope it help
2 geological features of Florida state making it fragile is the Everglades and its bio-diverse nature.
Explanation:
The Florida state is one of three Everglades in the world to be marked as such due to its tendency of being in drought condition all the time due its draining capacity and location in its southernmost parts.
The other environmental condition which the state faces, is the bio-diverse nature of the state. It has endangered species population of cougar. It has been marked as the protected area for the panther species. Alligators too have been listed in the state for the endangered kind. Rest fills up the circuity of the state.
