Which of these help to maintain the body shape of an Earthworm?

• Bristles

• Segments

• Body fluid

• None of them

Which of these help to detect the slighest movement and warn a cockroach of any danger from behind?

• Antennae

• Cerci

• Bristles

• Tentacles

Which of these helps a fish to move up and down in water ?

• Streamlined Shape

• Fins

• Tail

• Swim bladder

Which of these features help birds to fly?

• Streamlined body

• Hollow bones

• Wings and powerful chest muscles

• All of these

Which of these joints does the elbow have?

• Fixed joint

• Slightly movable joint

• Freely movable joint

• None of these

Which of the follwoing has a streamlined Shape?

• Aeroplane

• Fish

• Bird

• All of these

Which of these animals do not have limbs?

• Bird

• Snail

• Cockroach

• Snake

Which of these protect the heart and the lungs

• Skull

• Rib Cage

• Backbone

• Limbs

Which of the following has movable joints?

• Skull

• Ribcage

• Limbs

• Backbone

The end of bones are covered with?

• Muscles

• Cartilage

• Vertebrae

• None of these