Use the graph to answer the question below.

Question

The graph shows number of rotifers on the y-axis from 0 to 4500, in increments of 500. The x-axis is labeled as days. The data is as follows. Day 0: number of rotifers alone and number of rotifers with water fleas, 0. Day 2: number of rotifers alone and number of rotifers with water fleas, 0. Day 4: number of rotifers alone and number of rotifers with water fleas, 300. Day 6: number of rotifers alone and number of rotifers with water fleas, 500. Day 8: number of rotifers alone and number of rotifers with water fleas, 800. Day 10: number of rotifers alone, 1700 and number of rotifers with water fleas, 1600. Day 12: number of rotifers alone, 3000 and number of rotifers with water fleas, 1500. Day 14: number of rotifers alone, 4000 and number of rotifers with water fleas, 1100. Day 16: number of rotifers alone, 4200 and number of rotifers with water fleas, 200. Day 18: number of rotifers alone, 4200 and number of rotifers with water fleas, 0.

Examine the graph. What is the flask’s carrying capacity for rotifers in the presence of water fleas?

(1 point)
Responses

4,200
4,200

3,000
3,000

0
0

1,800

Answer 1

The carrying capacity of a population is the maximum number of individuals that an environment can sustain. In the context of the provided graph, the carrying capacity for rotifers in the presence of water fleas would be the maximum number of rotifers that can coexist with water fleas without the population declining.

From the data, we see that the number of rotifers present in the presence of water fleas reaches a peak of 1,700 rotifers on Day 10 and then declines to 1,100 on Day 14, and further to zero on Day 18.

Therefore, the highest value that the number of rotifers reaches while the water fleas are present is 1,700, which indicates that the carrying capacity for rotifers in the presence of water fleas is not exceeding this number.

Thus, the carrying capacity for rotifers in the presence of water fleas is approximately 1,700. However, since that option is not listed, we can summarize that the answer based on the given options, considering the context, would be 1,800 as a maximum potential upper limit close to the peak observed value of rotifers in the presence of water fleas, despite that not being explicitly reached. But since it's not clear that the explanation just requires knowledge of the maximum observed value or an interpretation based on provided choices, let's consider that 1,800 is the closest suitable answer.