Week 11 Science Test-Birds

Birds are __________ with wings and feathers.

• invertebrates

• vertebrates

• mammals

Most birds can fly, using powerful __________ to flap their wings.

• muscles

• bones

• Cartlidge

• beaks

A few bird species do not have strong enough wings to fly, and so these birds are __________.

• featherless

• wing clipped

• boring

• flightless

Birds' bodies are covered with a light, tough layer of __________.

• skin

• muscle

• feathers

• bone

Instead of teeth, birds have hornlike _______, or bills.

• noses

• beaks

• ears

• mouths

Birds _______ from eggs.

• hatch

• eat

• drink

• grow

Many species of birds , build _______ where their eggs and young can develop in safety.

• houses

• stores

• nests

• shelters

About __ bird species cannot fly.

• 30

• 1000

• 700

• 40

How many number of species of birds are there?

• 750

• 1250

• 1200

• 10,200

True or False? An Emu is a bird.

• True

• False