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- 1. Multiple Choice
What is intraspecific competition?
Two or more species trying to utilize a limited resource at the expense of the other species
All of these
Animals within the same species trying to utilize a limited resource at the expense of other animals within the species
Animals of the same species trying to prey on one another
- 2. Multiple Choice
In a certain ecosystem, foxes and snakes prey on the same species of rabbit. What would increase the competition between the foxes and the snakes?
A reduction in the number of rabbits in the ecosystem
All of the above
An increase in population of foxes and snakes
A reduction in the size of the habitat for the foxes, snakes, and rabbits
- 3. Multiple Choice
What are some examples of resources over which plants compete?
Water, light, and space
Space, water, and animals
Carbon dioxide, sugar, and temperature
Water, light, and carbon dioxide
- 4. Multiple Choice
Ecosystem
A single, self-contained living thing
How all the living and nonliving things in an area interact
A group of organisms that are similar to one another and can mate to produce offspring
Something that is needed by organisms and is not infinite in its abundance in the environment; if it is exhausted, then the organisms that need it cannot survive.
- 5. Multiple Choice
More than one individual or population in an ecosystem relies upon the same limited resources
Species
Competition
Organism
Ecosystem
- 6. Multiple Choice
Species
More than one individual or population in an ecosystem relies upon the same limited resources
How all the living and nonliving things in an area interact
Something that is needed by organisms and is not infinite in its abundance in the environment; if it is exhausted, then the organisms that need it cannot survive.
A group of organisms that are similar to one another and can mate to produce offspring
- 7. Multiple Choice
Organism
A single, self-contained living thing
How all the living and nonliving things in an area interact
More than one individual or population in an ecosystem relies upon the same limited resources
A group of organisms that are similar to one another and can mate to produce offspring
- 8. Multiple Choice
What is interspecies competition?
Two or more species trying to prey on one another
Animals within the same species trying to utilize a limited resource at the expense of other animals within the species
Two or more species trying to run, fly, or swim faster than the other species
Two or more species trying to utilize a limited resource at the expense of the other species
- 9. Multiple Choice
Rabbits live in a certain ecosystem where they are hunted by both hawks and coyotes. What would NOT cause a reduction in the rabbit population?
A housing development being built in the rabbits’ habitat
A reduction in the population of both hawks and coyotes
A drought that reduces the food source for the rabbits
A disease that affects the rabbit population
- 10. Multiple Choice
Something that is needed by organisms and is not infinite in its abundance in the environment; if it is exhausted, then the organisms that need it cannot survive.
Limited resource
Ecosystem
Organism
Species
- 11. Multiple Choice
Eagles and grizzly bears live together in the same habitat. There will be competition between the eagles and the grizzly bears only if which of the following is true?
Grizzly bears hibernate during the winter while eagles remain active.
Pesticides in the fish population affect eagles’ eggs and decrease their population.
Both grizzly bears and eagles feed on the same species of salmon.
Laws prevent humans from being able to hunt eagles or grizzly bears.
- 12. Multiple Choice
An increase in which of the following factors is likely to contribute to competition between two members of the same species living in a certain habitat?
Available food resources
Population of the species
Annual rainfall
Overall size of the habitat
- 13. Multiple Choice
The population of deer in a certain area is monitored over a period of six years. The data is represented in the graph provided.
(See Attached Diagram)
Which of the following is the most likely explanation for the change in population in 2009?
Wolves, which prey on deer, were being hunted more than usual.
Rainfall in the previous spring was higher than the yearly average.
Humans introduced grazing animals that feed on the same plants as the deer.
More insects that pollinate flowering plants move into the habitat.
- 14. Multiple Choice
A student wants to investigate competition between two organisms. For the investigation, it is most important that the student should choose organisms that–
reproduce at the same rate.
are both active during the day.
have the same adaptations.
require the same resources.
- 15. Multiple Choice
Two species of fish live in the same pond. They eat the same kinds of plants. They are eaten by the same water birds. Which of the following would increase competition between these two species of fish?
Average habitat temperature increases
Population of water birds increases
Number of food plants increases
Water level in the pond decreases
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