6G Test 2 Practise

Because muscles need lots of energy to move, they have lots of:

• ribosomes

• chloroplasts

• vacuoles

• mitochondria

What gives flexibility and movement near your bones?

• muscles

• joints

• ligaments

• tendons

__________ stretch and keep your bones in place.

Which bones are used for protection? (choose 3)

• skull

• ribs

• spine

• shoulder

What is made in your bones?

• water

• sugar

• protein

• red blood cells

A hydrostatic skeleton uses __________ pressure to give support.

Animals that have an exoskeleton are: (choose 2)

• worms

• crabs

• sea anemones

• snails

True of False: Can you control your skeletal muscles?

• true

• false

Which muscles pump blood?

• skeletal

• cardiac

• smooth

• all of these

Blood vessels and organs are lined with __________ muscles.