Ecosystem Unit Test Review

If an area of land was cleared to build homes, what would happen to the deer population in that area?

• population would increase

• population would decrease

• population would stay the same

If deer were introduced into this ecosystem, which population would most likely decrease?

• Grass population

• Bird population

• Mouse Population

• Grasshopper population

If there were increase of owls into this ecosystem, which population would most likely decrease?

• Grass population

• Bird population

• Mouse Population

• Grasshopper population

In Florida, Black bears are only found in a few regions. If roads and highways continue to be constructed in Florida, what will MOST likely happen to the bear population?

• bear population will increase and spread to other regions

• bear population will increase because other animals are moving out to other areas

• bear population would decrease because they have less food and shelter

• bear population will decrease because of car pollution

What would happen to the population of Owls if their food source of mice were elmininated?

• owls would immediately starve to death

• owls would prey on similar food sources

• owls would begin eating berries

• owls would live off stored fat reserves

Estuaries have marsh grasess that act as a safe nursery for young fish. This describes what limiting factor?

• food

• space

• shelter

• predators

What would decrease as a result of severe drought?

• competition

• migration

• crop yield

• starvation

White-tailed deers are herbivores. What would happen to the deer population if a drought occured and most plants die off?

• Deer population wouldn't change

• Deer population would increase due to lack of food

• Deer population would decrease due to lack of food

• Deer would become extinct

Mice, squirrels, Rabbits, and bobcats live in the same ecosystem.

Which animal would have the hardest time surviving if the other 3 animal population continued to decrease?

• Mouse

• Squrriel

• Rabbit

• Bobcat

What is the best example of a Host organism?

• A bat pollinating a flower

• A bird building a nest in a tree

• A flea getting nourishment from a dog

• Ants building an ant hill in the ground.