California State University, Northridge BIO 101 Chapter 27 1)Fleas feed on the blood of dogs, cats, and people

California State University, Northridge

BIO 101

Chapter 27

1)Fleas feed on the blood of dogs, cats, and people. What is this ecological relationship called?

2.            The ecologists say that competition occurs whenever two organisms attempt to              

3.            Müllerian mimicry is used by the monarch and viceroy butterfly

4.            Warning coloration is used by animals to              

5.            Sap-feeding insects that feed on plants without consuming them completely may be classified as:

6.            Parasites live on (or in) host organisms and usually                

7.            Competition between the members of two species is:

8.            Humans contract bacterial infections such as tuberculosis or syphilis. What is this ecological relationship called?

9.            Intraspecific competition is an example of an ecological factor that          

10           Which behavioral response to the threat of predation is most likely to be selected for in a species that uses camouflage for protection from predators?

11           A "keystone" species is one that                 

12           Mutualism refers to interactions between species in which              

13           An ecological niche:

of the interacting species while harming the other.

15.          Just as no two organisms can occupy exactly the same physical space at the same time, no two species can inhabit exactly the same               simultaneously

16.          A species that is a mimic may:

17.          The biologist who studies interactions at the community level investigates interactions among:

18.          Two species that have a high degree of niche overlap will:

19           An ecological community consists of      

20           Interspecific competition is reduced by the adaptation of            

21           In the Australian outback, emus feeding in the open brush lands resemble the bushes. This is an example of: