10.1

Why do fish have gills?

• So that they can fly

• So that they can swim better

• So that they can breathe underwater and perform a gas exchange

• So that they can hide from predators

A species is:

• a group of organisms that reproduce in water.

• a group of organisms that can produce offspring that can also reproduce.

• a group of organisms that cannot reproduce.

• someone who wears glasses.

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NGSS.MS-LS3-2

The drawing shows two tigers. If you saw these two tigers in the wild, one difference would be:

• they have different patterns of stripes

• one is bigger than the other

• one has a tail and the other does not

• they have different numbers of legs.

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NGSS.MS-LS4-4

Organisms living in hot, dry areas are more likely to survive if they:

• wash regularly

• do not waste water

• have thick hair

• do not have sharp claws.

List the steps of the scientific method

d

e

f

c

b

a

Analyze results

Form a hypothesis

Conduct experiment

Draw conclusions

Ask a question

Communicate results

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NGSS.MS-LS1-6

Which of these features can not be inherited?

• eye colour

• hair colour

• a scar

• curly hair

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NGSS.MS-LS3-2

A polar bear is white like the snow surrounding it in its habitat. Describe this adaptation.

• Regeneration

• Mimicry

• Camouflage

• Hibernation

What shape graph do you see for many examples of continuous variation?

• A straight line downwards

• A straight line upwards

• A bell-shape

• A flat line

Which blood group is the most common?

• A

• B

• AB

• O

A strong tube that carries air down from your nose and mouth.

• Bronchi

• Trachea

• Alveoli