Biology 6.1 Habitats, Niches & Symbiosis

An area with a particular combination of physical and biological environmental factors that affect which organisms can live within it

• habitat

• niche

• competition

• biome

the variety of environmental conditions within a species can survive and reproduce

• habitat

• niche

• tolerance

• resource

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where an organism lives and what it does "for a living"; an organism's "role" within an ecosystem

• habitat

• niche

• competition

• biome

The phenomenon that no two species can occupy exactly the same niche in exactly the same habitat at exactly the same time

• niche

• habitat

• predator-prey relationships

• competitive exclusion principle

the state or condition of feeding on plants

• predator

• prey

• herbivory

• resourcing

These images represent which phenomenon?

• logistic growth

• competitive exclusion

• exponential growth

• predator prey relationships

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These images represent which phenomenon?

• logistic growth

• competitive exclusion

• exponential growth

• predator prey relationships

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A century ago, hunters nearly eliminated otters across much of their range. After that, kelp forests up and down the couch vanished. Without otters preying on sea urchins, urchin populations skyrocketed. Armies or urchins devoured kelp. Without kelp forests as habitats, fishes, seabirds, and many other species disappeared. In this community, otters function as

• symbiotic species

• mutualistic species

• commensalistic species

• keystone species

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a particularly close, interdependent relationship between two species is known as

• symbiosis

• predator prey relationships

• succession

• biodiversity

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Between bees and flowers, the flowers get pollinated and the bees get nectar. Which type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

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