B2 - Interdependance Flashcards Preview

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Flashcards in B2 - Interdependance Deck (11):

What do animals compete for?

- food
- water
- shelter
- light
- minerals
- mates


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

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


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

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


What is an ecological niche?

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.


What is intraspecific competition?

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


What is interspecific competition?

Interspecific competition is competition between two animals of different species.


Describe a predator-prey relationship.

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.


What is a parasite?

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


What is mutualism?

Mutualism is where two animals benefit from the relationship.


What is a root nodule?

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


What does nitrogen fixing bacteria do?

Nitrogen fixing bacteria converts nitrogen into nitrates.