1. Ecology Review

2. BE sure to view powerpoint in presentation mode.
Write answer on white board before clicking a second time to check answer.
Alternate turns and keep score.

3. Deer and cows are examples of…..
herbivores

4. The Nile Crocodile and the Egyptian Plover are an example of…
mutualism

5. Autotrophs are….
Producers

6. A beneficial association is
mutualism

7. Primary consumer is the…
grasshopper

8. What would happen if the mouse became extinct?
Decrease in the fox, owl and eagle populations. Increase in the grasshopper populations.

9. Decomposers
are…..
Fungi & Bacteria
Omnivores are…….
Lizard

10. And the species with the larger brain is…….

11. A tick sucks blood from a dog; therefore, the dog is the ______ and the tick is the _______
Host, parasite

12. Secondary
consumers
are …..
Bears, Bats,
Raccoons,
Foxes Birds
Tertiary consumers are ……
Ermine, Wolverine, Minks, Weasel

13. Returns nutrients to the soil.
decomposer

14. The Cattle Egret forages at the feet of grazing cattle, head bobbing with each step, or rides on their backs to pick at ticks.
Commensalism

15. Give 2 ways humans depend on the ocean
Food (fishing)
Transportation (ships)
Tidal Power
Off shore drilling for oil

16. What is the relationship between the Alligator lizard and Robin?
Competition

17. What are the limiting factors of plants in a desert?
Water
Nutrients in soil
Temperature

18. What determines carrying capacity?
The amount of resources: Water Food Sunlight (autotrophs) Space

19. What is the purpose of using an insecticide?
To kill insects
What is the purpose of using a herbicide?
To kill plants

20. What secondary consumers are competing for the same food?
Shrew and frog

21. Draw a quaternary food chain that includes the frog.
Cattailcricketfrogsnakehawk

22. How does the rotting log get its energy?
By decomposing the log.

23. The maximum number of organisms that an ecosystem can support.
Carrying Capacity

24. decrease Increase adaptations
????? What will happen to unsuccessful traits in a population over time?
What will happen to successful traits in a population over time
Those organisms that survive the longest probably have the best ___________
decrease
Increase
adaptations

25. Insectivorous Tree Finches - Competition
Scarlet Tenagers feed on bugs in leafy trees, which type of finch would probably decrease if Tenagers were introduced to the Galapagos Islands? Why?
Insectivorous Tree Finches - Competition

26. A close, long-term relationship, between two or more species is a __________ relationship.
Symbiotic

27. predatory / prey?

28. A relationship that is beneficial to both organisms is known as what kind of symbiotic relationship?
Mutualism

29. Competition-they both eat sunfish
What interactive relationship exists between the turtle and the egret?
Competition-they both eat sunfish

30. Commensalism, the bird benefits, the tree is unaffected.
What type of relationship exists between a tree and a bird that builds a nest on one of the tree’s branches?
Commensalism, the bird benefits, the tree is unaffected.

31. Predation: Bass is predator, sunfish is prey.
What interactive relationship exists between the bass and the sunfish? Be specific.
Predation: Bass is predator, sunfish is prey.

32. Give 1 example of an autotroph from the food web below.
Shrub or Algae

33. Decrease, because mountain lions won’t have a choice of what to eat.
What will happen to the deer population if the raccoon population drastically decreases?
Decrease, because mountain lions won’t have a choice of what to eat.

34. What does the egret have to do to get chemical energy?
Eat a sunfish

35. Which organism(s) in the web have the ability to turn radiant energy into chemical energy?
Algae and Shrub

36. raccoon, alligator, bass, turtle, egret. (carnivore eats carnivore)
According to the web, which organism(s) could be a tertiary consumer?
raccoon, alligator, bass, turtle, egret. (carnivore eats carnivore)

37. What is ecology?
The study of relationships between biotic and abiotic factors in environments.

38. predatory / prey?

39. Water, clouds, air, sun, etc.
Give an example of an abiotic factor in a biome.
Water, clouds, air, sun, etc.
(Anything NOT living)

40. Rabbits, mice and insects. They are primary consumers.
Which consumer(s) has the greatest amount of energy and what class of consumer are they
Rabbits, mice and insects. They are primary consumers.

41. The number one cause of extinction to organisms today is….
Habitat Destruction

42. When soot started turning the trees black, what adaptation did the moths undergo? Why was this adaptation essential to their survival?
Dark peppered moths increased in population because they were able to blend in with the dark trees and hide from predators better.

43. Name 3 things that humans can do help save organisms that are in danger of extinction.
Protect the endangered species, protect their habitats, decrease pollution, decrease use of pesticides and herbicides, etc.

44. Explain the consequences of habitat destruction and species extinction.
When habitats are destroyed and species become extinct, the food web gets messed up and there is less biodiversity.

45. Describe “survival of the fittest”
Organisms that are better suited for their environment survive and reproduce more effectively

46. Give an example of an abiotic and biotic limiting factor for a population of frogs
If the frogs did not have enough insects and other living organisms to eat, this biotic factor would limit their population.
If an ecosystem were too cold, dry, or the soil was too rocky these abiotic factors would limit the population.

47. What are variations? Give an example.
Small differences in an organism caused by genetic mutations that can be passed on to offspring. Ex: beak size, feet, color of fish, etc.

48. Adaptations increase a species chance of survival
Adaptations increase a species chance of survival. Give an example of an adaptation and explain how it helps that organism to survive.
Ex: Rabbits who’s fur grows in thicker during the winter are more likely to survive the cold temperatures.

49. What is the source of energy for most living things?
The sun

50. survival of the fittest
Organisms that are better suited for their environment survive and reproduce more effective – this is known as
survival of the fittest

51. Nature “selects” which organims will live and pass on their genes and which ones will dies out – this is known as
natural selection

52. Finished, continue with Ecology Reteach Activities
Link to activities