1. a population is the amount of a certain species or organisms in a group.
2. Food, water, and space
3 and 4, I have no idea. I'm so sorry ;-;
5. the zebras would run out of water, meaning they won't be able to survive.
6. ?
7. ?
8. ?
9. Rabbits that live in snowy areas change the color of their coats during winter. This helps predators from finding them.
10. A dolphin that swims at birth is innate and a dolphin learning tricks is learned behavior.
I'm sorry for skipping questions, I hoped this helped in some way though ^-^"