Darwin observed that the finches on two different islands in the galapagos belonged to the same family, but showed a lot of variations in their beak size and shape. how can this variation be justified?

1. traits

2. genes

3. dna

4. environment

5. 23

6. haploid

7. half

8.   fertilization

9. 46

10. zygote

11. half

12.   randomly

13. different

hope this a little : )

homeostasis, that is what i think at least

environmental effects. when sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain.

so the answer is a   : )

im pretty sure punnet square if i remember correctly