B2.3.3 - Variation Flashcards

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1
Q

What is meant by variation?

A

Differences in characteristics e.g. hair colour, eye colour, etc.

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2
Q

Give examples of environmental variation.

A

Scars

Tattoos

Dyed hair

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3
Q

What is meant by a characteristic?

A

A feature of an organism

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4
Q

Different species show _______ of variation.

A
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5
Q

What is a species?

A

A group of organisms that share similar features

And can produce fertile offspring.

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6
Q

Name the two types of variation.

A

Inherited variation

Envrionmental variation.

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7
Q

Which charactersitics are not affected by the environment?

A

Blood group

Natural eye colour

Genetic diseases.

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8
Q

Give examples of genetic variation.

A

Natural eye colour

Natural hair colour

Blood group

Genetic diseases.

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9
Q

How can nose shape be genetic and environmental variation?

A

Genetic: nose shape is inherited from parents

Envrionmental: a person may have cosmetic surgery or break their nose.

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10
Q

Members of the same species show _______ variation than members of different species.

A

less

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11
Q

Why are siblings (brothers and sisters) not identical to each other?

A

They inheirt a different mixture of genes form their parents.

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12
Q

What does fertile mean?

A

Can have babies.

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