classification and biodiversity

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What does claassification show?
How organisms are related to one aother
1 of 21
What does morphological adaptation stand for?
the shape of an animal/ how animals change in shape to their surrounding
2 of 21
Give two examples or orphological adaptations to a polar bear
1) coat colour e.g. to camouflage 2) body mass e.g. less heat is lossed with more body mass
3 of 21
What is the meaning of behavioural adaptations?
the way they behave to survive
4 of 21
Give one example of a behavioural adaptation to any animal?
e.g. an animal may hunt at night to avoid prey
5 of 21
Give four factors that can affect the population size in animals?
1) competition for food and water 2)number of predetors 3)disease 4)pollution
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What are the four factors that can affect the population size of a plant?
1)competition for light or water 2)number or herbivored 3)pollution 4)disese
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What is the difference between predetor and prey?
preditor- animals that kill and prey- animals eated
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What is the meaning of biodiversity?
the number of species in an area
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What do biodiversities aim to do?
aim to stable ecostystems and resist harmful situations
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Because of the increase of new building, quarrying e.t.c what is happening to the biodiversity? and what is the effect?
Decrease i biodivrsity meaning species are becoming exstinct
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What are the methods of protecting biodiversity?
CITES-prevent endangered species SSSI- sight of special sientific interest ZOOZ's, National Parks, Sees banks and Local Biodiversity schemes
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When studying an ecosystem what can be used?
A quadrat
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What are te potensial risks of measuring animals that move within a quadrat?
-counting the same animal twice -missing some as they have moved out of the quadrat
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What is the sollution to this problem?
Capture recapture technique
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What is the equasion for this technique?
N=MC/R (M-marked and captured, C-captured 2nd visit, R-ones marked 2nd visit)
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How can we improve the accuracy of the capture recapture method?
make sure enough time has passed inbetween the two samples, the marking technique des not affect the survival of animal e.g. seen easier by a predetor
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What is a biological control of pests?
its when another organism is used to kill pests
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Give one benefits and drawbacks to biological cotrol?
- specific to particular pest and the pest doesnt develop resistance to the predetor however it doesnt completely get rid just lowers the numbers of the pest
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What is an alien species?
an animal or plant in a country it doesnt come from
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Name some of the effects alien species may have on wildlife e.t.c.
-may take over native species -may carry disease -ruin the natural/native plants of a country causing them to die e.t.c.
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Other cards in this set

Card 2

Front

What does morphological adaptation stand for?

Back

the shape of an animal/ how animals change in shape to their surrounding

Card 3

Front

Give two examples or orphological adaptations to a polar bear

Back

Preview of the front of card 3

Card 4

Front

What is the meaning of behavioural adaptations?

Back

Preview of the front of card 4

Card 5

Front

Give one example of a behavioural adaptation to any animal?

Back

Preview of the front of card 5
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