Classifying Animals

One way to classify animals is by the presence or absence of a _______________.

• backbone

• wings

• fur

• scales

Tags

NGSS.MS-LS4-2

A spider is an invertebrate because it is covered by a(n) _______________.

• exoskeleton

• endoskeleton

• shell

• fur

Birds have lightweight bones and wings to help them _______________.

• fly

• swim

• crawl

• jump

Birds and _______________ have lungs and they lay eggs.

• reptiles

• mammals

• fish

Tags

NGSS.MS-LS4-2

Reptiles live in wet or dry places because their skin is _______________.

• waterproof

• fragile

• porous

• thin

Frogs and toads breathe through _______________ when they are young.

• lungs

• gills

• skin

• fins

Amphibians can live on land because they grow lungs and _____________.

• they develop adaptations for terrestrial life.

• they lose their gills completely.

• they become warm-blooded.

• they grow feathers.

Tags

NGSS.MS-LS1-5

Fish have scales and a _____________ shape to move easily through water.

• streamlined

• circular

• square

• triangular

People are a kind of vertebrate called a _____________.

• mammal

• reptile

• amphibian

Mammals feed _____________ to their young.

• milk

• water

• honey

• juice