Food Webs-MS- L.5.3B.3 & L.5.3B.4- Impacts

Front

What will most likely happen if squirrels are removed from the food chain?

Back

The fox population will decrease.

Answer explanation

The fox is a carnivore, without its food source, they will die or leave the ecosystem. The trees will have more acorns as well.

Front

Which population would most likely increase if the crayfish population decreased? Options: snail, fish, mink, hawk

Back

snail

Answer explanation

The Crayfish is the consumer of snails, with less Crayfish eating the snails, the population of snails will increase.

Front

How will it most likely affect the ecosystem if the population of grass increases?

Back

The population of deer will increase

Answer explanation

If there is more plants for the deer to eat, then the population of deer will increase.

Front

Which statement is correct about the role of humans in the ocean food web?

Back

Humans occupy a top position because they are not eaten by any other organisms.

Answer explanation

Humans do not typically have predators.

Front

Which activity would most likely pollute a river?

Back

spreading fertilizer near the river

Answer explanation

Fertilizer can be washed down into the river- causing pollution of the water.

Front

Impact of decline in weasel population on grassland food web due to bacterial infection.

Back

The number of spiders will increase.