I think the correct answer from the choices listed above is the first option. <span>Men do not have all gametes in their testes at birth. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
Answer: A. New species can appear gradually through small changes in an ancestral species
Explanation:
Wow this is phrased rather difficult.
My answer would definitely would probably be "C".
Remember that the 10% rule only applies towards energy. Since energy is no indication of healthiness all trophic levels are healthy in their own way.