Ecosystems Test Review

Which list could be used to describe an ecosystem?

• The sun, H₂O, a rock and Carbon Dioxide

• An Ivory plant, deer, mushrooms and a fox

• Salt water, algae, water temperature, plankton and a whale shark

• A Killer Whale, a shark, a fish, and plankton

Analyze the Pond Ecosystem Picture and it's labels. What are the biotic factors in the Pond Ecosystem?

• Sun, Water, Oxygen,soil

• Rocks, Fish, Snail, Soil

• Water boatman, grass, trees

• Kingfisher, Soil, Sand, Dragonfly

When biotic and abiotic factors of a specific area interact with each other in order to survive, we call this-

• a population

• an ecosystem

• a community

• a habitat

Choose the list that best represents the levels of organization, starting with the outside layer-

• Organism, Population, Community, Ecosystem

• Organism, Community, Population, Ecosystem

• Ecosystem, Community, Population, Organism

• Ecosystem, Population, Community, Organism

A student listed the following Prairie Organisms:

coyotes, jack rabbits, cactus, rattle snakes, hawks and scorpions

These organism make up a-

• Population

• Community

• Ecosystem

• Organism

In a pond ecosystem, a school of fish swim together. What level of organization would a group of fish in this ecosystem belong to?

• Population

• Ecosystem

• Organism

• Community

Which of the following is an example of how an abiotic factor affects a community?

• High temperatures over extended periods of time cause a drought. The fish & frog populations decrease.

• A mosquito species infects a population of cattle with a deadly disease and causes the heard to die quickly.

• A fungus infects a school of fish, cause illness.

• An increase in the grass population cause an increase for organisms who consume producers.

Which organisms obtain energy directly from the Sun?

• The mushrooms, insects & trees

• The Trees, fish & plankton

• The Birds, fish & insects

• The Algae, trees, & grass

Choose the answer that best completes the sentence.

A bear may temporarily leave it's usual hunting territory to find water during a drought. This behavior is due to-

• migration, the bear needs a new habitat.

• a change in the biotic factors in the bear's habitat.

• a change in the abiotic factors in the bear's environment.

• the bear needing a variety of food to eat.

A scientist examines what happens to deer when the dates of hunting season start one month earlier than usual and end one month later than usual. What level of organization is the scientist observing?

• An organism

• A community

• A population

• An ecosystem