Horomones im not sure what are the options of answers
it diest show anyopions to choose from
My hypothesis is that the female shark reproduced asexually since she was left alone in her own tank with no male sharks around.
Explanation:
-infectious
-microscopic
-specific to their host
-can't reproduce on their own (this is why they are not considered alive)
-no organells or membranes. just a protein coat and genetic material
-3 basic shapes: helical , polyhedral , and comples