1. Populations & Communities
Ch. 1 Review
Populations & Communities

2. Lesson 1 Big Ideas
An organism gets the things it needs to live, grow, and reproduce from it’s environment.
Biotic and abiotic factors make up a habitat.
The levels of organization within an ecosystem are organism, population, and community.
Click the link to watch the Ecosystems Song:

3. What level of ecological organization would this lizard be?
Community
Ecosystem
Organism
Population

4. What level of ecological organization would this lizard be?
Community
Ecosystem
Organism
Population

5. This red panda gets the things it needs to live, grow, and reproduce at the Knoxville Zoo. The zoo would be the red panda’s _______________.

6. This red panda gets the things it needs to live, grow, and reproduce at the Knoxville Zoo. The zoo would be the red panda’s ___habitat_____.

7. The water, dirt, and air in this turtle’s habitat are ___________ factors.

8. The water, dirt, and air in this turtle’s habitat are ___abiotic___ factors.

9. What is a biotic factor in this picture?

10. What is a biotic factor in this picture
What is a biotic factor in this picture? Any of the plants on the windowsill

11. Which level of ecological organization is displayed in each of these pictures?

12. Which level of ecological organization is displayed in each of these pictures? Populations

13. The two populations below belong to two different species
The two populations below belong to two different species. They interact with each other and live in the same area. What level of ecological organization do they represent?

14. The two populations below belong to two different species
The two populations below belong to two different species. They interact with each other and live in the same area. What level of ecological organization do they represent? Community

15. Identify the levels of ecological organization in this picture: 1
Identify the levels of ecological organization in this picture: 1. organism 2. population 3. community 4. ecosystem
Organism= 1 prairie dog; population= all of the ferrets on the prairie; community= all of the populations on the prairie combined (the owls, the grass, the ferrets, the hawks, the flowers, the prairie dogs); ecosystem= all of the biotic and abiotic factors on the prairie (all of the living and non-living things on the prairie combined)

16. Lesson 2 Big Ideas
Populations can change in size when new members join the population or when members leave the population.
Some limiting factors for populations are weather conditions, space, food, and water.

17. What is the population density of “mini” T-Rex’s on the 3 ft by 4 ft piece of land below?

18. Remember…
Population Density= Number of Individuals
Unit Area

19. What is the population density of “mini” T-Rex’s on the 3 ft by 4 ft piece of land below? 1 mini T-Rex per ft2

20. What are two ways to leave a population?

21. What are two ways to leave a population? 1. Emigration 2. Death

22. What are two ways to join a population?

23. What are two ways to join a population? 1. Immigration 2. Birth

24. What are factors that limit population growth?

25. What are factors that limit population growth?
Water, food, living space, and weather conditions

26. Lesson 3 Big Ideas
Every organism has a variety of adaptations that are suited to its specific living conditions to help it survive.
Click the link to watch the Adaptations Song:
Two major types of interactions among organisms are competition and predation.
The three main types of symbiotic relationships are mutualism, commensalism, and parasitism.
Click the link to watch the Symbiosis Rap Song:
Evolution and Natural Selection Rap Song:

27. What is the term for young Simba’s role in his habitat?
Examples:
He drinks at the watering hole
He eats meat that his parents feed him
He plays with his friend, Nala
His Dad teaches him how to pounce and catch prey
He will one day become King of Pride Rock

28. What is the term for young Simba’s role in his habitat? Niche
Examples:
He drinks at the watering hole
He eats meat that his parents feed him
He plays with his friend, Nala
His Dad teaches him how to pounce and catch prey
He will one day become King of Pride Rock

29. What type of interaction among organisms is shown in the picture?

30. What type of interaction among organisms is shown in the picture?
Predation

31. The children are feeding the seagulls
The children are feeding the seagulls. What type of interaction is taking place among the seagulls that are trying to eat the same bread?

32. The children are feeding the seagulls
The children are feeding the seagulls. What type of interaction is taking place among the seagulls that are trying to eat the same bread?
Competition

33. What type of symbiosis is shown in the pictures below?

34. What type of symbiosis is shown in the pictures below? Commensalism

35. What type of symbiosis is shown in the pictures below?
Left: leach; right: tick

36. What type of symbiosis is shown in the pictures below? Parasitism
Left: leach; right: tick

37. What type of symbiosis is described in the cartoon?

38. What type of symbiosis is described in the cartoon? Mutualism

39. What type of symbiosis is shown in the pictures below?

40. What type of symbiosis is shown in the pictures below? Mutualism

41. Lesson 4 Big Ideas
Unlike primary succession, secondary succession occurs in a place where an ecosystem currently exists.
Click the link to watch the Succession Song:

42. Which kind of succession would occur in the area displayed below?

43. Which kind of succession would occur in the area displayed below?
Secondary succession

44. Which kind of succession would occur in the area displayed below?
Primary

45. Which kind of succession would occur in the area displayed below?
Primary succession
Primary

46. Which kind of succession would occur in the area displayed below?
Secondary

47. Which kind of succession would occur in the area displayed below?
Secondary succession
Secondary

48. Which kind of succession would occur in the area displayed below?

49. Which kind of succession would occur in the area displayed below?
Secondary succession