Answer:
<em>I believe the answer is D.</em>
Explanation:
Not washing and sharing personal things
He observed 15 different finch species that originated as one ancestral bird. all differing in body shape, beak size, and mating habbits
Hey there!
Here is your answer for this question.
Answer : <em>B. the Frogs are a limiting factor for the gnats. </em>
I hope this helps you! Please let me know if you need anymore help on anything you are struggling with!☺