Final Exam Living Earth

About this deck

This deck includes 32 flashcards covering population growth, limiting, ecology, and related concepts. Use it to review key Biology ideas, focus on weak cards, and prepare for your exam with StudyLess.

1. 01

   What is ecology?

   The study of how organisms interact with each other and their environment.

2. 02

   Break down the word 'ecology' into prefix and suffix.

   'eco' means home/environment and '-logy' means study of.

3. 03

   What is an abiotic factor? Give 3 examples.

   A nonliving part of an ecosystem; examples include sunlight, water, and temperature.

4. 04

   What is a biotic factor? Give 3 examples.

   A living or once-living part of an ecosystem; examples include plants, animals, and fungi.

5. 05

   Define biosphere.

   The part of Earth where all life exists, including land, water, and air.

6. 06

   List the levels of ecological organization from smallest to largest.

   Organism, population, community, ecosystem, biome, biosphere.

7. 07

   What is a population? Give an example.

   A group of the same species in one area; example: deer in a forest.

8. 08

   What is an ecosystem? Give an example.

   A community of organisms interacting with nonliving factors; example: a pond.

9. 09

   What is the area where an organism lives?

   Habitat.

10. 10

    Give 3 resources organisms benefit from each other.

    Food, water, shelter.

11. 11

    What is commensalism?

    A relationship where one organism benefits and the other is unaffected.

12. 12

    What is mutualism?

    A relationship where both organisms benefit.

13. 13

    Define parasitism.

    A relationship where one organism benefits and the other is harmed.

14. 14

    Give an example of mutualism.

    Bees and flowers.

15. 15

    Give an example of commensalism.

    Barnacles on whales.

16. 16

    Give an example of parasitism.

    Ticks on a dog.

17. 17

    What is a limiting factor?

    Any factor that restricts population size or growth.

18. 18

    Compare weather and climate.

    Weather is short-term conditions; climate is long-term patterns.

19. 19

    What is the role an organism plays in its environment?

    Niche.

20. 20

    What is population density?

    The number of individuals in a given area.

21. 21

    Identify the population growth model with a line curving upward.

    Exponential growth.

22. 22

    What is the opposite of population growth?

    Decline or decrease.

23. 23

    What is carrying capacity?

    The maximum population an environment can support.

24. 24

    What human activities reduce biodiversity?

    Deforestation, pollution, overhunting/overfishing.

25. 25

    Why would a population slow or level off after exponential growth?

    Because resources become limited and carrying capacity is reached.

26. 26

    How does increased biodiversity benefit humans?

    It provides resources, stabilizes ecosystems, and improves resilience.

27. 27

    Name 3 ways a population can be distributed.

    Clumped, uniform, random.

28. 28

    What is biodiversity?

    The variety of living organisms in an area.

29. 29

    What is biological magnification?

    The increase of toxin concentration as it moves up the food chain.

30. 30

    Name 3 density-dependent limiting factors.

    Competition, predation, disease.

31. 31

    Name 3 density-independent limiting factors.

    Drought, floods, wildfires.

32. 32

    What does a population growth line going downward indicate?

    Population decline (negative growth).