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Related Flashcards
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Cards In This Set
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Biotic Factors vs. Abiotic Factors
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Biotic is living things (plants, animals, bacteria, etc.)
Abiotic is nonliving things (water, soil, sunlight, temperature, gases, etc)
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Carrying Capacity
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The number of organisms an environment can support. If population goes above carrying capacity, there will not be enough resources to support them. The populaion will decline until fall below the carrying capacity.
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Idenitify the relationship as mutualism, commensalism, or parasitism:
The acacia tree is protected from other insects by a certain species of ant. The ants, in turn, feed on a sweet secretion produced by the tree.
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Mutualism
the tree and the ant both benefit
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Idenitify the relationship as mutualism, commensalism, or parasitism:
The roots of the mistletoe plant absorb nutrients from living oak trees, causing some damage to the tissues of the trees.
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Parasitism
the mistletoe is benefiting but the tree is getting "hurt"
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Type of relationship where one organism benefits and the other organism is not helped nor harmed.
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Commensalism
Like the whale and barnacles on its tail
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 What does the following picture represent? |
Ecosystem
An ecosystem is living and nonliving. The picture shows things like the duck, fish, etc, but it also shows rain, sun, and a lake
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How is a community different from an ecosystem?
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A community is only living things, while an ecosystrm is living and nonliving.
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What is a population?
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A group of organisms that can produce fertile offspring.
example: red foxes
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What are comsumers?
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Eat other organisms for energy. Also called heterotrophs
example - animals/bacteria/fungi
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What are producers?
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Take in energy and make their own food. Also known as autotrophs.
example - plants
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What is the role of decomposers?
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Breakdown dead/decaying material
example - fungi, bacteria
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Difference between a habitat and niche
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Habitat - where an organism lives
niche - organism's role, "the way it lives its life"
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Can you organisms occupy the same niche?
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NO.
example - 2 birds want the same nesting spot. They will compete for it. Only one will win.
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Omnivores
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Eat plants and meat
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Herbivores
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Eat plants
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