Answer:
c. parasite
Explanation:
the barnacle benefits from the host while the host is harmed from the barnacle
approximately 115 days
Human red blood cells (RBC), after differentiating from erythroblasts in the bone marrow, are released into the blood and survive in the circulation for approximately 115 days.
Speciation is b. the process by which new species are formed. They are often caused by the isolation of certain organisms in terms of environment or geographical area. This is part of the evolutionary changes that various species undergo to brought about by natural selection.
A comet. It’s a smaller celestial body that’s composed of mainly ice and dust.
