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- 1. Multiple Choice
Not living, or produced by living things
Abiotic factors
Biotic factors
Ecosystem
Population
- 2. Multiple Choice
Living, or produced by living things
Biotic factor
Abiotic factor
Organisms
Competition
- 3. Multiple Choice
Hawks and owls eat the same type of food and struggle with one another to get their food. What is this an example of?
Competition
Biotic factor
Symbiosis
Population
- 4. Multiple Choice
The specific environment in which all the biotic and abiotic factors in an area interact.
Ecosystem
Organism
Struggle
Competitive Interaction
- 5. Multiple Choice
A self-contained living thing.
Organism
Population
Abiotic factor
Ecosystem
- 6. Multiple Choice
Hawks and brown bears live together in the same habitat. There will be competition between the hawks and the brown bears only if which of the following is true?
Brown bears hibernate during the winter while hawks remain active.
Pesticides in the fish population affect hawks’ eggs and decrease their population.
Both brown bears and hawks feed on the same species of fish.
Both Shanna and Savanna feed on the same species of snakes.
- 7. 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 snowfall
Overall size of the habitat
- 8. 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. Which of the following is the most likely explanation for the change in population in 2009?
Wild dogs, which prey on deer, were being hunted more than usual.
Snowfall 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 ecosystem.
- 9. 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 a faster rate.
are both active during the night.
have the different adaptations.
require the same resources.
- 10. Multiple Choice
Competition becomes more important as the number of individuals ______ or the availability of resources _________.
increases, decreases
increases, increases
decreases, increases
decreases, decreases
- 11. Multiple Choice
In an ecosystem, what do organisms and populations with similar needs compete over?
food
water
shelter
all of the above
- 12. Multiple Choice
The milkweed plant serves an important role in the life cycle of the monarch butterfly. Adult monarchs lay their eggs on milkweed, and then caterpillars eat that same plant during their development. Based on the relationship between monarchs and milkweed, which of the following trends would be predicted when looking at data on the populations of these two organisms?
A decrease in the milkweed population will cause a decrease in the monarch butterfly population.
When the milkweed population decreases, the monarch butterfly population stays the same.
A decrease in the milkweed population will cause the monarch population to increase.
When the monarch population increases, the milkweed population stays the same.
- 13. Multiple Choice
Two species of fish live in the same pond. Which of the following would increase competition between these two species of fish?
Habitat temperature increases.
Population of birds that eat the fish increases.
Number of food plants the fish eat increases.
Water level in the pond decreases.
- 14. Multiple Choice
Which of the following lists contains only abiotic factors?
water, air, temperature
grass, air, people
trees, fish, polar bears
grass, water, sand
- 15. Multiple Choice
A __________________ relationship is when a biotic or abiotic factor is needed by an a living thing to surive
Dependent
Competitive
- 16. Multiple Choice
A ____________________ Relationship is when two living things "fight" for limited resources.
Dependent
Competitive
- 17. Multiple Choice
This diagram shows the variety of organisms that live in different tide zones. Mussels are common organisms that compete for space in intertidal (middle) tide zones. If all of the mussels were removed from zone A, which organisms would likely compete for the space in Zone A?
Periwinkle and Limpets
Sea lettuce and Chiton
Sea urchins and Hermit crabs
Rock louse and Periwinkle
- 18. Multiple ChoiceAnimals from two different species utilize the same source of nutrition in one area. It is most accurate to say that the animals…will learn to get alongwill compete for foodwill die because there will not be enough food for both of themwill learn to eat different foods
- 19. Multiple Choice
What will happen if a factor that a species is dependent on decreases?
The species will also decrease
The species will increase
nothing
- 20. Multiple Choice
Organism X feeds mainly on small fish, amphibians, and reptiles. With which organism is organism X most likely to compete?
Great blue heron
Mallard
Pied-billed grebe
Great egret
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