plants and animals

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  • Created by: XxzoexX
  • Created on: 09-03-15 18:59
what resources do plants and animals need to survive?
-light -food and water -space -nutrients
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why do living thing need to compete for resources?
there is not enough for every plant or animal to get what it needs
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what happens to organisms that are not successful at competing for resources?
they die as they dont get what they need
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what human activities pollute the air?
-factories and power stations -landfills,waste mining and quarrying -boats can get oil spillage -fossil fuels burnt in car engines adds to global warming
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how are lichens used as indicators of air pollution?
lichen are plant-like organisms they absorb water and minerals from rain water and directly from the atmosphere.the more pollution in the air, the less lichen species there are. the cleaner the air is the more lichens species there are
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what is a producer?
plants which their food
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what is a herbivore?
animal that eats plants only
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what is a carnivore?
an animal that eats meat only
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what is a primary consumer?
feeds on producer
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what is a secondary consumer?
feeds on primary consumer
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where does all the energy on earth come from?
the sun
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how does the energy from the sun get into the food chain?
the producer as a result of photosynthesis
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how do living things use energy?
-respiration -waste products -to keep warm -add to body mass
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how much of the body mass is added to after being eaten (food chain)?
10%
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what is biomass?
amount of materials in a living thing
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what is a pyramid of biomass?
shows the mass of living things at each stage of the food chain. The amount of biomass at each stage is less than it was at the previous stage.
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Other cards in this set

Card 2

Front

why do living thing need to compete for resources?

Back

there is not enough for every plant or animal to get what it needs

Card 3

Front

what happens to organisms that are not successful at competing for resources?

Back

Preview of the front of card 3

Card 4

Front

what human activities pollute the air?

Back

Preview of the front of card 4

Card 5

Front

how are lichens used as indicators of air pollution?

Back

Preview of the front of card 5
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