LS2-4 Review

Front

What most likely caused the deer population to increase?

Back

Their predators were disappearing.

Front

If many hollow trees were removed from the area, which would most likely increase? (Bluebirds, beetles, wood ducks, squirrels, and owls all will nest in holes in hollow trees.)

Back

competition for nest sites between bluebirds and wood ducks

Front

Effect on another population if nearly all field mice are removed in a food web.

Back

The amount of seeds will increase.

Front

In 1989, an oil spill off the coast of Alaska led to a decline in the populations of many organisms. Which population was most likely affected by the drop in populations of fish, otters, and seals?

Back

eagles

Front

A rainforest area is experiencing a severe drought. As a consequence, the insect population has decreased. What will the insect-eating birds most likely do as a result of the drought?

Back

move to a new area to find food

Front

How did the increase in the population of bald eagles most likely affect snakes living in eagle habitats?

Back

The increase reduced the number of snakes.

Front

Look at the oval below.

Back

Parts of an Ecosystem

Front

A fishing technology company invents a new kind of net that dramatically increases the catches of squid from the ocean. Based on the food chain provided, which is the most likely effect this advanced fishing technology will have on ocean organisms?

Back

a decrease in seal numbers