Download Chapter 8 Study Guide

Chapter 8
Understanding Populations Study Guide
1. A territory is
2. List an example of a parasite.
3. Bacteria in your intestines are an example of mutualism if they
a. Make you sick
b. Have no effect on you
c. Are destroyed by digestive juices
d. Help your break down food
4. Predators _____________________ kill their prey.
5. What property of a population may be described as even, clumped, or random?
6. The “co” in evolution means ____________________________.
7. What can occur if a population has plenty of food and space, and has no competition or predators?
(Hint: What type of growth?)
8. A grizzly bear can be all of the following except a
a. Parasite
b. Competitor
c. Mutualist
d. Predator
9. Which of the following has the greatest effect on reproductive potential?
a. Producing more offspring at a time
b. Reproducing more often
c. Having a longer life span
d. Reproducing earlier in life
10. Members of a species may compete with one another for __________________________.
11. A robin that does not affect the tree in which it nest is an example of what type of symbiosis?
12. Two species can be indirect competitors for food if they
a. Use the same food source at different times
b. Have different food sources
c. Fight over food
d. Eat together peacefully
13. Which of the following is one of the main properties used to describe a population?
a. Number of individuals
b. Color of individuals
c. Number of species
d. Kind of adaptations
Density
Growth rate
Reproductive potential
Carrying capacity
Density independent regulation
Niche
Habitat
Competition
Parasitism
Coevolution
14. For a population growth rate to be zero, what must happen to the deaths and births?
15. Exponential growth occurs when a population
16. Interaction between two species in which both are harmed _______________________________
17. The functional role of a species within an ecosystem ___________________________________
18. One of three main properties of a population _________________________________________
19. Development of adaptations as a result of symbiotic relationships _______________________________
20. Maximum population that an ecosystem can support indefinitely _______________________________
21. Close interaction between two species in which one organism benefits while the other organism is
harmed _______________________________________
22. The ratio of births to deaths in a population _____________________________________
23. Maximum number of offspring that each member of a population can produce ____________________
24. A reduction in population size caused by a natural disaster ____________________________________
Density dependent
Dispersion
Density
Territory
Limiting resource
25. The location where an organism lives _____________________________________
26. Number of individuals per unit area _______________________________________
27. Example of indirect competition for resources ___________________________________________
28. Relative distribution of individuals _____________________________________________
29. Water, sunlight, or nutrients for plants __________________________________________
30. Deaths caused by disease ____________________________________________________
Competition
Predation
Parasitism
Mutualism
Commensalism
31. Species A benefits and species B is killed _______________________________________
32. Species A and B negatively affect each other _____________________________________
33. Species A and B both benefit _________________________________________________
34. Species A benefits and Species B is unaffected ___________________________________
35. Species A benefits and species B is harmed but not killed ___________________________