Question

question 40
1 pts
figure 5-6
what effect did the loss of species b have on species a and d in figure 5-6?

• it caused the populations of a and d to decrease
• it caused the populations of a and d to become extinct
• it caused the populations of a and d to increase
• it had no effect on the populations of a and d

question 41
1 pts

Explanation:

To determine the effect of losing species B on A and D, we analyze the population - time graph. After species B is lost (around the time when B's population drops, likely due to some event), we observe the trends of A and D. From the graph, the population curves of A and D show an upward trend (increase) after the loss of B. The option "it caused the populations of A and D to decrease" is incorrect as the graph shows growth. "It caused the populations of A and D to become extinct" is wrong because their populations are increasing, not going to zero. "It had no effect on the populations of A and D" is also incorrect as there is a clear change (increase) in their populations. So the correct option is the one stating that the loss of B caused A and D's populations to increase.

Answer:

C. it caused the populations of A and D to increase