Read the sentences. The bodies of bats are covered in fur. The bodies of birds are covered in feathers.

Victoria enjoys laughing with her friends as they walk around the track after school which best describes her heart rate during this activity

When children are young and go to the doctor, the doctor will give them booster shots. this re-exposes the children to a dead portion of a disease to them build immunity.

The first step in treating water from a river or lake is usually