You are presented with the quiz "What requires investment, seed mass, size and dispersal?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "plant requires seed dispersal for reproduction" and "reproductive investment was measured as seed mass, samara size, and dispersal ability". So, what's the best answer to the question?

pick from the following. a. plants; b. Species; c. animals; d. coral; e. Oak; f. gene flow; g. Frogs; h. mussels;
Answer:
a.