4to semestral

1. What level of organization of living things corresponds to the following definition? Living things of the same species in the same territory at the same time.

• A. An individual.

• B. A population.

• C. An ecosystem.

• D. A community.

2. What are the levels of organization of living things in order from the least complex to the most complex?

• A. species – population – community – ecosystem

• B. ecosystem – community – population – species

• C. population – species – community – ecosystem

• D. species – community – population – ecosystem

3. What is the name of a group of populations inhabiting the same area and interacting with each other and the environment?

• A. A population.

• B. A community.

• C. An ecosystem.

• D. A species.

4. Which level of organization corresponds to all the organisms that inhabit a certain area, interacting with each other and the environment?

• A. A species.

• B. An ecosystem.

• C. A population.

• D. A community.

5. What are the biotic components in the image?

• A. Air, rocks and water.

• B. Water, dolphins, sea lions and fish.

• C. Sea lions, dolphins, penguins and rocks.

• D. Penguins, fish, dolphins and sea lions

6. What organizations of living things are there in the image?

I. A population of penguins.

II. A population of starfish.

III. A community of fish, dolphins, sea lions and penguins.

• A. Only I.

• B. I and II.

• C. I and III.

• D. Only II.

7. Which statement is correct?

• A. An ecosystem is formed by only abiotic factors.

• B. Biotic factors interact with each other and abiotic factors in an ecosystem.

• C. Living things depend only on the biotic factors in an ecosystem to survive.

• D. Biotic factors make up all the nonliving components of an ecosystem.

8. What interaction is there between the bird and the worm?

• A. Predation.

• B. Mutualism.

• C. Competition.

• D. Abiotic factors.

9. Frogs swim in ponds and also look for food on land. In what kind of ecosystem do these amphibians live?

• A. Aquatic.

• B. Terrestrial.

• C. Mixed.

• D. Coastal

10. Which are examples of aquatic ecosystems?

• A. Rivers and bushes.

• B. Oceans, rivers and lakes.

• C. Deserts, forests and bushes.

• D. Coasts, tropics and oceans.