B1.4 adaptation

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What 5 things to plants need to survive?
Light, carbon dioxide, water, oxygen and nutrients
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What 3 things do animals need to survive?
Food from other living organisms, water and oxygen
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What are adaptations?
Features that make it possible for an organism to survive in its particular habitat
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How do plants produce glucose?
Photosynthesis
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How are epiphytes adapted to live high above the ground?
They collect water and nutrients from the air through their leaves
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How do some sea birds remove the salt they do not need after drinking sea water?
By 'crying' very salty tears through special glands
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What is an extremophile?
An organism with variations to live in extreme environments
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What are microorganisms that can survive very high temperatures called, and how are they adapted?
Thermophiles - they have specially adapted enzymes
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How are extremophiles who live in very salty conditions adapted?
Their cytoplasm is adapted so that water doesn't leave the cell
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What is the amount of heat energy you lose related to?
Your surface to volume ratio
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Why are deserts very difficult places to survive in?
It's very hot in the daytime but cold at night, and there's very little water
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Why does keeping cool in the desert pose more problems to mammals?
They need to keep a constant body temperature but they can't sweat
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What are the small openings in leaves called that allow gas exchange for photosynthesis, and what is lost through them?
Stomata lose water by evaporation
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Where can plants store water?
In their tissues
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3 things animals compete for:
Food, mates and territory
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What is an animal's territory?
A place to find food/reproduce
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Why do some plants flower earlier in the year?
There's plenty of light that gets in through the bare branches
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What does the distribution of living organisms depend on?
Environmental conditions - light, pH and local climate
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What factor determines the distribution of aquatic animals?
Oxygen levels
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How can you measure environmental change? (2 methods)
By looking at non-living indicators, or at the changing distribution of living organisms
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Other cards in this set

Card 2

Front

What 3 things do animals need to survive?

Back

Food from other living organisms, water and oxygen

Card 3

Front

What are adaptations?

Back

Preview of the front of card 3

Card 4

Front

How do plants produce glucose?

Back

Preview of the front of card 4

Card 5

Front

How are epiphytes adapted to live high above the ground?

Back

Preview of the front of card 5
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