The range of motion at a joint or group of joints Exercises in which the muscles are lengthened gradually through a joint's complete range of motion are referred to as:that can be achieved without causing injury is known as .

Flexibility

Explanation:

Flexibility is a health-related part of physical ability where the muscles and joints undergo a full range of motion without causing an injury. That is, the joints and muscles may have a different range of motion and the ones without the full range of motion can be improved by stretching exercises which could be static or dynamic.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

the answer is d.) homologous; have mammary glands