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- 1. Multiple Choice
The ecological role an organism performs in their specific environment is considered the organism's...
Habitat
Population
Biome
Niche
- 2. Multiple Choice
"Organisms that have moved to a location that does not naturally support them."
Invasive species
Destructive species
Unwelcomed species
Infected species
- 3. Multiple Choice
a relationship between two species in which both species compete for limited resources such that both species are negatively affected by the relationship
Symbiosis
interspecific competition
species richness
species-area effect
- 4. Multiple Choice
A relationship in which two different organisms live in close association with each other
interspecific competition
Mutualism
Symbiosis
Commensalism
- 5. Multiple Choice
the differentiation of niches that enables similar species to coexist in a community
character displacement
climax community
resource partitioning
pioneer species
- 6. Multiple ChoiceWhat effect does biodiversity have on a community?It makes destruction by insects impossible.It makes primary succession more likely.It enables species to survive in a desert.It enables the community to withstand changes.
- 7. Multiple Choice
The ecological niches of three bird species are shown in the diagram. What is the advantage of each bird species having a different niche?As more birds feed higher in the tree, available energy increases.More abiotic resources are available for each bird.Predators are less likely to feed on birds in a variety of locations.There is less competition for food. - 8. Multiple Choice
What is a keystone species?
A species that helps to hold an ecosystem together
A species that lives in or around rocks
Keys and stones have nothing to do with ecology
A keystone isn't a living thing, it's just a stone
- 9. Multiple ChoiceFor plants, ______ can include sunlight, water, and soil nutrients.
For animals, ______can include nesting space, shelter, types of food, and places to feed.nichecommunitiesresourcesbiomes - 10. Multiple ChoiceWhen put together, one organism outcompetes the other for resources. This is an example of:competitive exclusion principlespeciationbiological nicheevolution
- 11. Multiple ChoiceBased on the graph shown, how can you tell sea otters are a keystone species?as the sea otter population decreases, biodiversity increasesas sea otter population increases, biodiversity increaseschanges in the sea otter population have little effect on biodiversitythe sea otter population dereases due to the presence of urchins
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