Ecosystems and food chains Flashcards

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1
Q

What percentage of energy is transferred in a food chain

A

10% to each level

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2
Q

What are the levels of the food chain described as

A

Producer, primary consumer, secondary consumer, tertiary consumer, top carnivore

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3
Q

What is a food web

A

Several interlinking food chains

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4
Q

What is an ecosystem

A

Living organisms in a particular area and their habitat (the physical area an organism lives in)

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5
Q

What is a niche?

A

particular place/role an organism has in an ecosystem

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6
Q

Can animals with different niches live together

A

Yes - animals can co-exist if they do not distrust each others diet/role

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7
Q

What is a pesticide

A

A substance used to destroy other organisms harmful to crops

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8
Q

What is bioaccumulation

A

A build up of biological chemicals hard to break down

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9
Q

What do the arrows in a food chain show

A

The direction energy is transferred

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10
Q

How does plastic build up in a food chain

A

Plastic builds up when creatures eat several contaminated substances and other creatures eat several of the previous creatures. The top predator may end up consuming a harmful amount of a substance

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11
Q

What is a community

A

Several different species of animals living in the same ecosystem

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12
Q

What is a population

A

A group of the same species living together

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13
Q
A
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