Question

this food chain shows organisms in a tundra ecosystem.
lichen collared lemming arctic fox baffin island wolf polar bear
use the food chain to complete the text below.
if the population of arctic foxes decreases, the population of collared lemmings will likely , and the population of baffin island wolves will likely .

Explanation:

Step1: Analyze the relationship between Arctic foxes and collared lemmings

In the food chain, Arctic foxes prey on collared lemmings. If the number of Arctic foxes (predators) decreases, there will be less predation pressure on collared lemmings. So, the collared lemming population will likely increase.

Step2: Analyze the relationship between Arctic foxes and Baffin Island wolves

Baffin Island wolves prey on Arctic foxes. If the Arctic fox population decreases, Baffin Island wolves (which depend on Arctic foxes as a food source) will have less food available. So, the Baffin Island wolf population will likely decrease.

Answer:

increase; decrease