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- 1. Multiple Choice
Plants are interacting directly with another living element of their environment when they are -soaking up waterabsorbing sunlightattracting insectstaking in carbon dioxide - 2. Multiple ChoiceWhich of the following examples shows how one organism is dependent on another for survival?A bee collects pollen as it moves from flower to flower.A sea anemone attaches itself to a hermit crab to feed on its leftover scraps.A giraffe stretches its neck to eat the leaves off a tall tree.All of the above
- 3. Multiple ChoiceA student observing animals in a park records ways they interact with living and nonliving parts of their environment. All of the following are ways animals interact with nonliving parts of their environment except:A turtle suns itself on a hollow log.A bird reacts to morning sunlight by singing.A rabbit eats grass near the edge of a pond.A spider crawls under a rock for protection.
- 4. Multiple ChoicePacman frogs live in South America. Some of their traits are listed here.
What habitat change might be harmful for a Pacman frog?Heavy rains in the afternoons over a period of daysAn increase in population of several kinds of birdsThe introduction of a new species that eats rodentsA change in weather, leading to cooler temperatures - 5. Multiple Choice
When the prey population in an ecosystem increases, which will most likely happen to the predator population?
The predator population will die out.
The predator population will decrease.
The predator population will gradually increase.
The predator population will move to an other ecosystem.
- 6. Multiple Choice
Which of the following is true?
As moose populations rise, wolf populations decrease.
More moose mean less food for wolves.
As wolf populations increase, moose populations decrease.
- 7. Multiple Choice
When more than one individual or population in an ecosystem that relies upon the same limited resources
Competition
Biotic factor
Symbiosis
Population
- 8. Multiple Choice
A self-contained living thing.
Organism
Population
Abiotic factor
Ecosystem
- 9. Multiple Choice
A group of interacting individuals of the same species located in the same area.
Population
Community
Ecosystem
The YMCA
- 10. Multiple Choice
A source or supply from which benefits are produced.
Resources
Sam's Club
Dependent Interaction
Symbiosis
- 11. 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.
- 12. 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.
- 13. 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.
- 14. Multiple Choice
Competition becomes more important as the number of individuals ______ or the availability of resources _________.
increases, decreases
increases, increases
decreases, increases
decreases, decreases
- 15. Multiple ChoiceWhich best describes an ecosystem?a system where living and nonliving things interacta place where there is always rain, soil, sunlight, and airanywhere there is only one kind of organisma system where populations stay the same
- 16. Multiple Choice
The term "organism" is what is used to refer to:
A place where living & non-living things interact with each other
The process where certain organisms use water, sunlight, & carbon dioxide to produce their own food
One of the non-living parts of an ecosystem
An individual living thing
- 17. Multiple Choice
What are resources in an ecosystem?
A living part of that ecosystem
The things that an organism gets from its environment which it needs in order to survive, grow, & reproduce
The process where certain organisms use water, sunlight, & carbon dioxide to produce their own food
The location in which an organism lives, and which provides the organism everything that it needs to survive
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