Question

The purple martin is a bird that eats insects. In terms of systems, why would the sudden elimination of this species be a problem?
1. The make up part of a negative feedback system that promotes insect population growth.

2. They make up part of a positive feedback system that promotes insect population growth.

3. They make up part of a negative feedback system that regulates insect population size.

4. They make up part of a positive feedback system that regulates insect population size.

Answer 1

3. They make up part of a negative feedback system that regulates insect population size.

They are eating (controlling) insect population.

Answer 2

Answer:

1. They make up part of a negative feedback system that promotes insect population growth.

Explanation:

If the Martin becomes extinct, it will cause an increase in insect population, as there is no predator to maintain the population. A population growth of insects would be a problem as it will destroy crops and agriculture.