Download Ecology Review

Name: ________________________________________________
Class:
Date:
Ecology Review
Enter the appropriate word(s) to complete the statement.
1. Mimicry is an example of a(n) ________structural____________ adaptation.
2. Animals with ______variations_______________ that benefit them often live longer than other animals in the same
species.
3. A population cannot exceed the _______carrying capacity__________ of its environment, which is the largest number
of individuals that an ecosystem can support.
4. Both owls and snakes preying on mice in the same forest habitat is an example of ______competition_________.
5. The sun is the original source of ______energy__________ for all living things.
6. Hawks hunt and eat mice. Hawks and mice have a _______predator prey______________ relationship.
7. The portion of Earth that supports life is called the _____biosphere___________________.
8. _____Natural selection_____________ involves the reproduction of organisms best suited to their environment in
greater numbers than the reproduction of less well-suited organisms.
9. A certain type of insect is very tasty to birds, but over time, has come to resemble another species of insect that makes
birds sick. This is an example of _____mimicry__________________.
10. A symbiotic relationship in which one species benefits and the other is harmed is a _____parasitic__________
relationship.
11. A symbiotic relationship in which one species benefits and the other is not affected is called
_____commensalism______________.
12. Some dogs bark at strangers, which is an example of a(n) _____behavioral____________ adaptation.
13. A dog breeder prefers very pointy noses for his dogs. So, he breeds dogs with the most pointed noses he can find in
hopes of getting puppies with very pointy noses. This process is called _____selective breeding___________.
14. A symbiotic relationship in which both partners benefit is called ______mutualism_________.
15. Snakes can detect infrared light. This is a(n) ____structural__________________ adaptation.
16. The place in which an organism lives is called its ____habitat_________.
17. Animals that reproduce with external fertilization release large numbers of eggs or sperm into their environment. This
is a ____functional____________ adaptation.
18. Living and nonliving parts of an environment together are referred to as a(n) ____ecosystem__________.
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Name: ________________________________________________
Class:
Date:
Ecology Review
Indicate the answer choice that best completes the statement or answers the question.
19. Which of the following is an inherited trait that increases an organism’s chance of survival and reproduction?
a. adaptation
b. mutation
c. natural selection
d. selective breeding
20. If there are no limiting factors, a population can reach its _____.
a. competition level
b. population potential
c. population density
d. biotic potential
21. Which of the following is a structural adaptation?
a. Migrating waterfowl have access to abundant food all year round.
b. Penguins share egg incubation between the male and female.
c. Birds can have very long bill to drink nectar from flowers.
d. Birds group up to protect their young from predators.
22. Producers are organisms that get energy from which of the following?
a. herbivores
b. omnivores
c. carnivores
d. sunlight
23. What is the difference between a community and an ecosystem?
a. An ecosystem consists of living and nonliving things in an area. A community is all the members of one
species in the area.
b. An ecosystem consists of living and nonliving things in an area. A community is all the populations in the
area.
c. An ecosystem consists of nonliving things in an area. A community is all the living things in the area.
d. An ecosystem consists of all the populations in an area. A community is all the nonliving things in the area.
24. Samantha plants some flowers in a flower bed and then ignores them. Soon weeds grow and the flowers die. The
weeds had been able to get enough resources to survive, while the flowers had not. This is an example of _____.
a. competition
b. population size
c. habitat
d. community
25. What is the difference between a population and a community?
a. A population is made up of all species in an area. A community is made up only of one species.
b. A population is made up of only one species. A community is made up of all species in an area.
c. A population is made up of all the species and nonliving things in an area. A community is made up of all
species in an area.
d. The words mean the same thing.
26. A monkey using a twig to hunt for ants in an anthill would be considered which type of adaptation?
a. structural
b. behavioral
c. functional
d. environmental
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Name: ________________________________________________
Class:
Date:
Ecology Review
27. Which of the following might a carnivore eat?
a. a leaf
b. a mouse
c. a dead cow
d. a and b
28. An adaptation _____.
a. is an inherited trait
b. increases a species’ chances of surviving
c. increases a species’ chances of reproducing
d. all of the above
29. Which of these is a limiting factor?
a. food supply
b. shelter
c. existence of predators
d. all of the above
30. Which of the following might an herbivore eat?
a. a leaf
b. a mouse
c. a dead cow
d. a and b
31. As carbon dioxide increases, the ocean’s water becomes _____.
a. less acidic
b. more acidic
c. more saline
d. both a and c
32. If a population becomes so low that the species is at risk of having no individuals remaining, it is considered to be
which of the following?
a. extinct
b. threatened
c. endangered
d. predated
33. Which is in order from highest to lowest population?
a. extinct, endangered, threatened
b. endangered, threatened, extinct
c. extinct, threatened, endangered
d. threatened, endangered, extinct
34. Which of the following is a behavioral adaptation?
a. Horses run as a herd.
b. Horses can run quickly to escape predators.
c. Horses’ teeth can grind grass.
d. Horses’ hooves can withstand the shock of their bodies running.
35. Carrying capacity refers to the largest _____ an environment can support.
a. ecosystem
b. community
c. population
d. habitat
36. Which of the following might an omnivore eat?
a. a leaf
b. a mouse
c. a dead cow
d. a and b
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Name: ________________________________________________
Class:
Date:
Ecology Review
37. Which of the following is a reason an animal population moves from one place to another?
a. overpopulation
b. too plentiful of a food supply
c. too few predators in an area
d. Shelter in the original area is readily available.
38. What percent of ocean pollution is considered to be land based?
a. 44%
b. 33%
c. 77%
d. 87%
39. Sea animals and plants use substances dissolved in Earth’s ____ to form bones and shells.
a. atmosphere
b. oceans
c. ocean floor
d. continents
40. An organism’s habitat includes which of the following?
a. all of the resources the organism needs
b. only shelter for the organism
c. only food for the organism
d. nothing at all
41. Gases dissolve in seawater at the ocean’s surface. How do they get mixed into water at deeper levels?
a. They stay at the surface.
b. Waves mix them deeper.
c. Gravity pulls them down.
d. They are more dense than the water.
42. What a species does in its habitat to survive is called its _____.
a. ecosystem
b. community
c. niche
d. population
43. How does the temperature of seawater affect the amount of O2 it contains?
a. As the temperature rises, the less O2 it contains.
b. As the temperature rises, the more O2 it contains.
c. As the temperature drops the less O2 it contains.
d. There is no relationship between temperature and O2 .
44. Which of the following is a structural adaptation?
a. A bird has a mating call to attract a mate.
b. A snowy egret will stand still in the water with its wings outstretched because fish are attracted to the shade.
c. Burmese pythons are able to unhinge their jaws to swallow large prey.
d. Some species of ducks will steal food out of the bill of an American coot
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