B2 - Interdependance Flashcards

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1
Q

What do animals compete for?

A
  • food
  • water
  • shelter
  • light
  • minerals
  • mates
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2
Q

Why do cheetah cubs have to move away from their mothers area?

A

This is so they are not competing with their mother for food.

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3
Q

A red squirrel and a grey squirrel have a closer competition than a red squirrel and a badger, explain why.

A

This is because the squirrels are the same species and are competing for more things than a squirrel and a badger.

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4
Q

What is an ecological niche?

A

An ecological niche is the role and position a species has in its environment; how it meets its needs for food and shelter, how it survives, and how it reproduces.

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5
Q

What is intraspecific competition?

A

Intraspecific competition is competition between two animals that are the same species.

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6
Q

What is interspecific competition?

A

Interspecific competition is competition between two animals of different species.

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7
Q

Describe a predator-prey relationship.

A

When the number of prey increases, the predator has more food so they increase. Then, more pray is eaten so numbers decrease and so do predator numbers.

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8
Q

What is a parasite?

A

An organism which lives in or on another organism (its host) and benefits by deriving nutrients at the other’s expense.

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9
Q

What is mutualism?

A

Mutualism is where two animals benefit from the relationship.

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10
Q

What is a root nodule?

A

A swelling on a root of a leguminous plant, containing nitrogen-fixing bacteria.

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11
Q

What does nitrogen fixing bacteria do?

A

Nitrogen fixing bacteria converts nitrogen into nitrates.

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