1. Review Questions

2. Question 1
Relationship between members of the same or different species in which individuals are adversely affected by those having the same living requirements, such as food or space

3. competition

4. Question 2
symbiosis that is beneficial to both organisms involved.

5. Mutualism

6. Question 3
A symbiotic relationship in which one organism benefits and the other is generally harmed

7. Parasitism

8. Question 4
a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter

9. Commensalism

10. Question 5
A relationship where one organism hunts (predator) and eats the other animal (prey)

11. Predator/Prey

12. Question 6
Barnacles create home sites by attaching themselves to whales. As the barnacle is a filter feeder, it also gets access to more water (and more food) due to the relationship. Whale is unaffected.

13. Commensalism

14. Question 7
A cuckoo lays its eggs in the nest of the warbler. The cuckoo’s eggs hatch first and the young kick the warbler eggs out of the nest. The warbler raises the cuckoo babies and the warbler babies aren’t hatched

15. Parasitism

16. Question 8
Remoras attach themselves to a shark’s body. They travel with the shark and feed on the leftover food scraps after the shark has finished its meal. The shark is unaffected as it’s done eating anyway.

17. Commensalism

18. Question 9
Ostriches and gazelles feed next to each other. They both watch for predators. Because the visual abilities of the two species are different, they can each identify threats that the other animal may not see as readily. Both species benefit.

19. Mutualism

20. Question 10
Hermit crabs will move into an old abandoned shell when their shell is no longer big enough to contain them. As the shell is inanimate (not living) it is not affected by this relationship.

21. commensalism

22. Question 11
Ants offer protection for the aphids who (have no protective features of their own) would otherwise would be food for all sorts of organisms. The aphids “repay” the ants by providing honeydew (a liquid they secrete) for the ants to use as food.

23. mutualism

24. Question 12
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both benefit.

25. Mutualism

26. Question 13
What is the source of all energy

27. sun

28. Question 14
Name a producer

29. Corn, plant, lavender, mangos

30. Question 15
Identify a primary consumer

31. Grasshopper, butterfly, fruit fly

32. Question 17
Identify a secondary consumer

33. Rat, frog, dragonfly, thrush

34. Question 19
Identify a tertiary consumer

35. Python, eagle, wolf

36. Question 21
How much energy is lost as you move up each trophic level in an energy pyramid?

37. 90%

38. Question 22
Where does the energy go?

39. It is used up and transferred into heat

40. Question 23
If producers have 5,000 kj of energy how much does the secondary consumer get?

41. 50kj

42. Question 24
If producers have 5,000 kj of energy how much does the primary consumer get?

43. 500kj

44. Question 25
If producers have 5,000 kj of energy how much does the tertiary consumer get?

45. 5kj

46. Question 26
If producers have 5,000 kj of energy, where does the energy come from?

47. The sun