It’s a place where birds lay their eggs.
nest
It’s a thing that birds use to fly.
wings
It’s an organ that controls your whole body.
brain
It’s a liquid that flows in your veins.
blood
It’s the substance which very young mammals eat.
milk
It’s a person who studies animals.
biologist
It’s a mountain with an opening at the top where gases and lava get out.
volcano
