Term
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Definition
"Survival of the fittest"
The strongest animals will survive, have offspring and the babies will be strong and fit. The weaker animals die off.
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Term
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Definition
| characteristics that have changed over time that help the animals survive. |
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Term
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Definition
| an animal that does the killing and hunting of other animals |
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Term
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Definition
| the animal that is eaten or hunted by the predator. |
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Term
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Definition
| the role (or job) a species or organism has in an environment. |
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Term
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Definition
| a struggle between organisms to survive in a habitat with limited resources |
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Term
| a niche or an organisms role may include: |
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Definition
- type of food they eat
- how it gets (obtains) its food
- what other organisms eat it for food
- how it reproduces
- physical conditions needed to live
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Term
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Definition
close relationship between two specides (organisms) that benifit at least one of the species.
There are three types |
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Term
Mutualism
and give an example |
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Definition
type of symbiosis (close relationship between two species) where BOTH species (organisms) benifit from being together
EX: saguaro cactus and long-eared bats (bat eats food from cactus and the bat spreads the pollen from the cactus) |
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Term
Commensalism
and an example |
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Definition
relationship where one species benefits (or is helped) and the other species is not helped or harmed (it is unaffect).
EXAMPLE: red tailed hawk builds its nest in the cactus but the cactus is not affected by the bird in any way |
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Term
Parasitism
and give an example? |
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Definition
one organism, or species, lives on, or in, another species and harms it
Example: fleas living on a dog
fleas are the parasite (thing that benefits)
dog is the host (live on) |
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Term
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Definition
| the organism that benefits in parasitism. It lives on or in another organism |
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Term
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Definition
| the organism that is hurt in parasitism. The organism that the parasite lives on or in. |
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Term
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Definition
| all the different populations that live together in one area |
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Term
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Definition
| the living parts of an ecosystem |
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Term
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Definition
the non-living parts of an ecosystem.
EXAMPLES:
- water
- sunlight
- oxygen (air)
- temperature
- soil
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Term
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Definition
| the number of one type (members) of organism in an area that can reporduce and have fertile offspring (have babies). |
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Term
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Definition
| an area where all living and non-living things interact. |
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Term
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Definition
| where an organism lives and it provides what the organism needs |
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