Evolution Flashcards

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1
Q

Why were Darwin’s theories rejected at first? (3)

A

> creationism

> lack of evidence

> no knowledge of inheritance and variation

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2
Q

Describe natural selection.

A

> naturally variation occurs because of sexual reproduction

> some of these variations give an advantage

> those who possess the beneficial gene will live longer, reproducing and passing on their beneficial gene.

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3
Q

How can mutation cause evolution?

A

> if the mutation of the gene creates a beneficial characteristic, it will allow the organism to live longer, reproducing and passing on the mutated gene.

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4
Q

Summarise evolution.

A

> over 3 million years ago life began as simple organisms from which the more complex organisms evolved.

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5
Q

What were Lamark’s theories?

A

> individuals in a species can change their features over a lifetime

> the acquired features would be passed on to the next generation.

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