Sharks and whales
competitors
the populations will compete with each other
Yes. They might compete for the same food source, or have different cources arising from the same root, or be consumers of one another.
they are obviously all animals
LOL..sounds like you're avoiding homework:) Organisms compete for space, food, water...think of it like overpopulation...if you're alone in a grocery store you're all set. You have food, shelter, water...all that you need. If you're there with 10 friends, you're good. But if you're there with 100 friends, you've got a problem. Suddenly you have to compete for food, shelter, mate, water...everything! So the strongest survives. Lion's do it by forming prides. But within that pride is a leader (the strongest male). If there are too many organisms for the available food, the strong survive by eating the food, taking the shelter, mating with the strongest available organism...and on they live. The weakest don't get the food, or the shelter, or the mate, and they perish. Good luck with the homework!
No, leopards do not prey on hyenas but may kill them because they compete for some of the same food sources.
Humans.
Two animals that compete with squirrels are rats and mice. They often live in the same areas and compete for food.
These two animals are carnivores. They would eat the same kind of food. Carnivores eat meat.
Small mammals and small birds could compete with the Dodo for food. While carnivores would kill the for food.
they compete so they can suvive and reproduce
They are the king of the food chain, so they don't really compete with other organisms besides each other. Lions compete with hyenas for food, as they are both apex predators inhabiting the same region.
Probably other sharks of the same and different species. They will either compete for mates or fish.
It eats other animals, therefore there must be something else which eats the same. So they probably will have to compete.
The same as everywhere else, mates, food, territory.
Cougars compete with any other animal that is hunting for the same food as the cougar, hope I helped! ^-^ I'm doing a cougar project in Science so that's how I know ;)
competitors