The answer should be C. Convergent plate boundary is when 2 or more <span>plate tectonics in the </span><span><span>lithosphere and move toward one another and collide. Which I believe is when a volcano is in the process of being formed. But if I were you I'd look into Divergent Plate Boundaries as well. </span> </span>
Antigens are usually found on the surface of pathogens and are unique to that particular pathogen. So that means that they are specific to that pathogen.
Reproduction, Heredity, Variety in fitness of population, and variety in characters among the population are all four conditions for natural selection.
