Prairie food web. Hawk, Hognose snake, garter snake, sparrow, toad, spider, grasshopper, rabbit, grass, mouse. Tundra food web. brown bear, polar bear, snowy owl, wolf, arctic fox, musk ox, caribou, lemming, hare, moss, grass, lichen.

Question

Prairie food web. Hawk, Hognose snake, garter snake, sparrow, toad, spider, grasshopper, rabbit, grass, mouse. Tundra food web. brown bear, polar bear, snowy owl, wolf, arctic fox, musk ox, caribou, lemming, hare, moss, grass, lichen.

Refer to the food webs above. If the grasses in each ecosystem are attacked or killed by a disease, which ecosystem will most likely survive?

A
The prairie ecosystem, because fewer organisms eat grass
B
The tundra ecosystem, because there is a variety of producers
C
The prairie ecosystem, because there are fewer top predators
D
The tundra ecosystem, because it has more herbivores

Answer 1

B. The tundra ecosystem, because there is a variety of producers. In the tundra ecosystem, there are multiple types of plants such as moss, grass, and lichen that serve as producers. If one type of grass is attacked or killed by a disease, the other types of producers can still provide food for the herbivores in the ecosystem, helping to sustain the food web.