Question 9

(Multiple Choice)

Refer to the figure.
Refer to the figure.   Considering the food web, imagine a circumstance where a new, mutually beneficial relationship develops between H2and H3, increasing both of their numbers. The effects of this on P2and C2are best described as A) a direct negative effect on P2and a trophic facilitation effect on C2. B) an indirect positive effect on P2and a direct negative effect on C2. C) a trophic facilitation effect on both C2and P2. D) a direct negative effect on both C2and P2. Considering the food web, imagine a circumstance where a new, mutually beneficial relationship develops between H2 and H3, increasing both of their numbers. The effects of this on P2 and C2 are best described as


A) a direct negative effect on P2 and a trophic facilitation effect on C2.
B) an indirect positive effect on P2 and a direct negative effect on C2.
C) a trophic facilitation effect on both C2 and P2.
D) a direct negative effect on both C2 and P2.

Answer