hEHE

1. Interactions AmongInteractions Among
Living ThingsLiving Things
Mr. SchumaierMr. Schumaier

2. What are ADAPTATIONS?

3. Behaviors and physical
characteristics of species that
allow them to live successfully
in their environment

4. How do an organism's
adaptations help it to survive?

5. An organism's adaptations enable
it to fill a unique role in its
ecosystem—eating particular
types of food, obtaining its food in
unique ways, and using other
abiotic and biotic factors to meet
its needs

7. What is a NICHE?

8. An organism's role or how it
makes its living

9. IN C L U D E S
•type of food
•how it obtains food
•when and how it reproduces
•physical conditions needed for
survival

10. What are the major types of
interactions among organisms?

11. Thre e ma jo r typ e s o f
inte ra c tio ns
Competition
Predation
Symbiosis

12. What is COMPETITION?

13. The struggle between
organisms to survive in a
habitat with limited resources.

15. Why can't two species occupy
the same niche?

16. If two species try to occupy the
same niche, they will compete
directly against each other, and
one species eventually will die off.

18. Describe PREDATION,
PREDATOR, & PREY.

19. P re d a tio n
Interaction in which one
organism kills and eat another.

20. P re d a to r
The organism that does the
killing

21. P re y
The organism that is killed

25. If predation removes more
members of a population than
are born, how will the
population change?

26. The size of the population will
decrease.

28. What is SYMBIOSIS?

29. A close relationship between
two species that benefits at
least one of the species.

30. What are the three forms of
symbiotic relationships?

31. Mutualism
Commensalism
Parasitism

32. What is MUTUALISM?

33. A relationship in which both
species benefit.

34. What is COMMENSALISM?

35. A relationship where one
species benefits and the other
species is neither helped nor
harmed.

36. What is PARASITISM?

37. One organism lives on or inside
another organism and causes
harm.

38. Describe PARASITE & HOST.

39. P a ra s i
te
H o s t
The organism that
benefits
The organism
that the parasite
lives in or on.

41. A walking stick is an insect that
resembles a small twig. How
do you think this insect avoids
predators?

42. By staying motionless among a
plant's branches, the walking
stick is camouflaged and
cannot easily be seen by
predators.