B1 Topic 1 Revision

What is a vertebrate?
An animal that is in possession of a backbone e.g mammals.
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What do invertebrates not have?
A backbone.
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What are the 5 kingdoms organisms are classified in?
Plantae, fungi, animalia, protoctista and prokaryotes.
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What is an 'adaptation'?
A special feature or type of behaviour that make a living organism well-suited to its environment.
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What does 'variation' mean?
The differences between individuals of the same species.
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Variation is due to two factors. State these factors.
Genetic causes (inheritance) and environmental causes.
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What two types can variation be grouped into?
Continuous and discontinuous.
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What was Charles Darwin's theory?
The theory of evolution by natural selection.
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Other cards in this set

Card 2

Front

What do invertebrates not have?

Back

A backbone.

Card 3

Front

What are the 5 kingdoms organisms are classified in?

Back

Preview of the front of card 3

Card 4

Front

What is an 'adaptation'?

Back

Preview of the front of card 4

Card 5

Front

What does 'variation' mean?

Back

Preview of the front of card 5
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