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| interaction between different species for the same resources except for the short tailed bat. |
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| A smaller species feeds off another species bigger. it either feeds on or in |
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| Relationship between two clsely associated species e.g shark fish |
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| One species benefits the other is not affected |
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| association between organisms of two different species in which one is inhibited or destroyed and the other is unaffected. |
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| sea levels fall due to snow on land and polar caps |
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| warming climate sea levels rise. Species become isolated once again due to sea level rise. |
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| there are no mammals in New Zealand |
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| a gigantic land mass 3-200 million years ago all the earth's continents were joined. |
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| Convection current caused.. |
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| The earth's crust to move. |
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| underwater 300 million years ago but it was pushed above still joined to australia/antartica. |
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| New Zealand broke away from Australia/antartica. |
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| a major part in evolution acting like barriers, isolating species |
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| the features that change to help a species survive. |
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are structures that help an organism to survive e.g a Sparrows wings
a roses thorn |
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are structures that help an organism to survive e.g a Sparrows wings
a roses thorn |
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| is the processes an organism carries out to survive. |
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The way some organisms nehave to survive
e.g the mating behaviour of a seagull
The instinct of a newly born lamb to suckle |
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| is a proces by which new soecies develop from earlier forms. It occurs slowly most often in response to a chang in a specie's enviroment. |
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| A group of individuals of the same species that are living together in the same area and can interbreed freely. |
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| Over-time the population may change as a result of movements in or out of the area. |
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| a shore of a lake restricts species that can't swim. |
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