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Natural selection model
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Slide 1

A population showing variation in colour.

A population showing variation in colour.

Continuous or discontinuous?

Slide 2

There is lots of food so your population survives and reproduces. Add 5.

There is lots of food so your population survives and reproduces. Add 5.

Slide 3

The bright yellow of some of your offspring attracts predators. All but two of them get eaten.

The bright yellow of some of your offspring attracts predators. All but two of them get eaten.

Slide 4

Theres lots of food and hiding places for the green and

Theres lots of food and hiding places for the green and

blue, but the red ones cant hide and get eaten.

Slide 5

A population showing variation in colour.

Slide 6

Plenty of food

Plenty of food

and its spring so another 10 offspring are born, they are a variety of colours.

Slide 7

Plenty of food and its spring so another 10 offspring are born, they are a variety of colours.

Plenty of food and its spring so another 10 offspring are born, they are a variety of colours.

Slide 8

Its winter and 5 of your population die

Its winter and 5 of your population die

Slide 9

Plenty of food

Slide 10

Its mating time again, blue and green mate and produce 5 green and 2 blue offspring. A mutation also produces 2 red offspring

Its mating time again, blue and green mate and produce 5 green and 2 blue offspring. A mutation also produces 2 red offspring

Slide 11

Its mating time again, blue and green mate and produce 5 green and 2 blue offspring. A mutation also produces 2 red offspring

Its mating time again, blue and green mate and produce 5 green and 2 blue offspring. A mutation also produces 2 red offspring

Slide 12

There is lots of food, and all reproduce 2 offspring, but the white are better at finding water and hiding from predators so they produce 5 offspring

There is lots of food, and all reproduce 2 offspring, but the white are better at finding water and hiding from predators so they produce 5 offspring

Slide 13

There is lots of food, and all reproduce 2 offspring, but the white are better at finding water and hiding from predators so they produce 5 offspring

There is lots of food, and all reproduce 2 offspring, but the white are better at finding water and hiding from predators so they produce 5 offspring

Slide 14

The bright red colour attracts mosquitoes carrying a deadly disease. They all die.

The bright red colour attracts mosquitoes carrying a deadly disease. They all die.

Slide 15

The bright red colour attracts mosquitoes carrying a deadly disease. They all die.

The bright red colour attracts mosquitoes carrying a deadly disease. They all die.

Slide 16

It is a particularly hot summer

It is a particularly hot summer

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