Question

Q: what event within the food chain might lead to the graph shown below?

A. A disease in the population of rabbits

B. A disease in the population of snakes.

C. A disease in the population of Hawks

D. it is impossible to tell which of the above occurred

Answer 1

Based on the graph, you can see that the population of grass is high, which indicates that the one that feeds on them has been affected. Logically, the rabbits are those that feed on it and as you can see, their population has lowered, and so did the snakes and the hawk.

So among the choices, B. a disease in the population of rabbits may have lead to the graph shown. 

Answer 2

Answer:

A. A disease in the population of rabbits.

Explanation:

I would say it is as a result of disease in the population of rabbits.

From the graph we would see that the grass population gradually increased this is as a result of the number of rabbits feeding on it decreased.

The four populations started out at their ideal values, it is likely that these changes were the result of a disease.

Because the rabbit population was the first to decrease, it is most likely that the disease occurred in the rabbit population, once this happen the snake population then decreased because its food supply (the rabbits) decreased. Since the snake population decreased, the hawk feeding on the snake population also decreased.

So the answer is A

A disease in the population of rabbits.