Question

1. what is a keystone species? a keystone species is one that _. 2. define migration in your own words: 3. fill in the blank: migration helps balance the ecosystem because it _. 4. what is predation, and how is it shown in the serengeti? predation is _ example from the video: a _ hunts a _. 5. in one predator - prey interaction, the prey escapes by _.

Explanation:

1. A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance. It helps maintain the structure of the ecosystem.
2. Migration is the seasonal movement of animals from one region to another. It helps balance the ecosystem because it can distribute resources, prevent over - grazing in one area, and aid in seed dispersal.
3. Migration helps balance the ecosystem because it allows animals to find food and suitable habitats at different times of the year, preventing over - exploitation of resources in one location.
4. Predation is a biological interaction where one organism (the predator) hunts and consumes another organism (the prey). In the Serengeti, for example, lions preying on zebras is an example of predation. It is shown through the lions chasing and capturing the zebras.
5. In a predator - prey interaction, the prey escapes by using various strategies such as speed, camouflage, or group behavior.

Answer:

1. A keystone species is a species that has a large impact on its ecosystem relative to its abundance.
2. Migration is the movement of animals from one place to another, often seasonally.
3. It allows animals to access different resources and habitats at different times.
4. Predation is when a predator hunts and eats a prey. In the Serengeti, lions preying on wildebeests is an example.
5. Using speed, camouflage, or group - behavior.