Question

this food chain shows organisms in a tundra ecosystem.
use the food chain to complete the text below.
if the population of polar bears increases, baffin island wolves will be likely
to survive and produce offspring. so, the population of baffin island wolves will likely

Explanation:

In a food chain, if the population of a predator (polar bear) increases, the population of its prey (Baffin Island wolf) will decrease because more predators will consume more prey to survive and reproduce. So the first blank (for Baffin Island wolves' change) should be "decreased" (or similar terms indicating reduction), and the second blank (effect on Baffin Island wolves' population) would be "decrease" as a result of more polar bears preying on them. But based on the context of the sentence "Baffin Island wolves will be [blank] to survive...", if polar bear population increases, wolves have more predators, so their survival becomes harder, meaning they are "less likely" to survive. Wait, re - examining the food chain: lichen → brown lemming → Baffin Island wolf → polar bear. So polar bears eat Baffin Island wolves. If polar bear population increases, they will eat more Baffin Island wolves. So Baffin Island wolves will be "less likely" to survive, and their population will "decrease". So filling the first blank (the likelihood for wolves to survive) with "less" (so "less likely") and the second part about wolf population will "decrease". But the question seems to have a dropdown for the first blank (the word before "likely") and then the effect on wolf population. So the first blank: "less" (so "less likely") because more polar bears mean more predation on wolves, reducing their chance to survive. Then the wolf population will "decrease" (or "reduced", etc.). But following the sentence structure: "If the population of polar bears increases, Baffin Island wolves will be [blank] likely to survive... So, the population of Baffin Island wolves will likely [blank]." The first blank: "less" (since increased polar bears (predators) make wolf survival harder), the second blank: "decrease" (as more wolves are eaten, population drops).

Answer:

For the first blank (before "likely"): less
For the second part (wolf population change): decrease