Unit 2 Science review LS2.3, 2.4, and 2.5

• grass

• lion

• vulture

• zebra

Green plants grow on the edge of a pond. Snails eat these green plants. Small fish eat the green plants. They also eat snails. what would the small fish in this pond be called?

• carnivore

• herbivore

• omnivore

• decomposer

What is the main difference between consumers and producers?

• consumers can move and producers can not move.

• producers can move and consumers can not move.

• consumers make their own food and producers do not

• producers make their own food and consumers do not

when can producers make more food?

• summer, becuase there is more light

• summer, because there is more heat

• spring, because there are more leaves

• spring, because there is more rain

A wolf's diet includes small rodents, birds and coyote. What is the wolf?

• omnivore

• carnivore

• decomposer

• herbivore

The number of fish increase in a lake. How will the increase most likely affect the lake?

• there will be less water in the lake

• mroe plants will grow in the lake

• more frogs will live in the lake

• there will be fewer insects in the lake

• algae

• mussels

• sea snails

• blue crabs

Bald eagles were once in danger of extinction. Since being protected by laws, the bald eagle population has grown. Bald eagles eat a variety of organisms to include snakes. How does the increase in bald eagles affect the snakes living in bald eagle environments?

• The increase reduced the number of snakes

• The increase forced the snakes to change habitats

• The increase caused snakes to find an alternate food source

• The increse caused snakes to form new traits

• trout and eagle

• algae and trout

• otter and sculpin

• sculpin and algae

Some changes in ecosystems are fast and some are slow. which of these changes is most likely the slowest.

• fire

• flood

• landslide

• drought