Evolution

• Science
• Lower Secondary (Key Stage 3)

Evolution and adaptation

Put the pictures into the correct order to show the evolution of the humans.

Spot the differences between the photos.

Which differences could you spot?

What is overproduction?

1. Species produce lots of young to try to survive to maturity
2. Species produce a a few young to raise to maturity.

Darwin suggested the theory of evolution by

1. Artificial selection
2. Asexual selection
3. Natural selection
4. Selective breeding

What is the process by which organisms better adapted to their environment survive and reproduce to produce more offspring?

1. Selective breeding
2. Random mutation
3. Natural selection
4. Genetic engineering

Which scientist is best known for his theory of evolution?

1. Prof Brian Cox
2. Marie Curie
3. Gregor Mendel
4. Charles Darwin

What word means organisms suited to their environment are more likely to survive and reproduce?

1. Survival of the fittest
2. Random selection
3. Reproductive isolation
4. Trait exclusion

Adaptations

How is the polar bear adapted to kill seals?

1. Sharp teeth
2. Warm fur
3. Small ears
4. Black nose

How is the polar bear adapted to live in the cold?

1. Sharp teeth
2. Thick hollow fur
3. Sharp claws
4. It can swim

Why does a camel have humps?

1. To store water
2. To store fat
3. To make it easier to ride
4. To keep it warm

How have arctic foxes adapted to their habitat?

What is the adaptation shown here?

How are fish adapted to swim in water?

How are sharks adapted to swim, hunt and kill?

Hot climate

Cold climate

Thick fur

Small ears

Large ears

White fur

Long eyelashes

Furry feet

Predator

Prey

Sharp teeth

Sharp claws

Good eyes

Eyes on front of face

Strong jaw muscles

Fast runners

Large ears

Eyes on the side of the head (rabbits)

Good at jumping