Unit 5 Exam: Ecology

Which item would be classified as an “abiotic factor” in an ecosystem?

• A. Bird

• B. Fungi

• C. Ant

• D. Rock

A community is different from a population by having what?

• Communities have biotic and abiotic factors

• Communities have one species living together

• Communities have many different species living together

• Community begins with one individual

What would be a hawksbill sea turtle habitat?

• Who it lives with

• Where it lives

• What it eats

• When it migrates

Which of the following is an example of a hawksbill interacting with an abiotic factor?

• Hawksbill digs a nest in the sand

• Hawksbill eats a cricket

• Hawksbill mates with another hawksbill

• Hawksbill gets attacked by a shark

Put the levels of organization in order from smallest to largest.

• Population, organism, ecosystem, biosphere, community

• Ecosystem, population, organism, community, biosphere

• organism, population, ecosystem, biosphere, community

• organism, population, community, ecosystem, biosphere

Which of the following is an example of symbiosis?

• A. A friend helping another friend with homework

• B. A mamma cat taking care of her kittens

• C. A mosquito biting you

• D. A friend sharing their lunch with you

Which factor would affect carrying capacity?

• Amount of sunlight

• Number of predators

• Number of prey

• All of the above

How is mutualism different from commensalism?

• In mutualism, both parties benefit while in commensalism one benefits and the other is unharmed

• In mutualism, one benefits and the other is unharmed while in commensalism both benefit

• Both are examples of symbiosis

• In mutualism, both parties benefit while in commensalism one benefits and the other harmed

A dog and flea is an example of what type of symbiotic relationship?

• Mutualism

• Commensalism

• Parasitism

• Depends on other factors

If there were too many preys in an environment, which of the following statements would NOT be true?

• The ecosystem would be fine.

• The ecosystem would collapse because of competition for food.

• The prey population would decrease.

• There would NOT be enough space for all organisms.