Which is a type of virus? a-capsid b-bacteria c-bacteriophage d-pilus

i think the answer is b.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .