Biology sem 2 wk 6

Front

What is the function of the circulatory system?

Back

The circulatory system is responsible for the transportation of vital materials such as oxygen throughout the body.

Front

What role do osteoclasts play in the repair of a broken bone?

Back

Osteoclasts remove dead bone cells to clean the site of the fracture.

Front

Why does a person's skin become darker with frequent sunlight exposure?

Back

Exposure to sunlight causes the production of melanin, which darkens the skin.

Front

Which part of the nervous system directly controls voluntary muscle movements?

Back

The somatic nervous system controls voluntary muscle movements.

Front

What major division of the nervous system includes the spinal column?

Back

The spinal column is part of the central nervous system.

Front

What is the primary function of red blood cells?

Back

Red blood cells transport oxygen from the lungs to the body's tissues.

Front

What is the role of the heart in the circulatory system?

Back

The heart pumps blood throughout the body, supplying oxygen and nutrients.

Front

What is melanin and its function in the skin?

Back

Melanin is a pigment produced in the skin that protects against UV radiation.

Front

What is the difference between the autonomic and somatic nervous systems?

Back

The autonomic nervous system controls involuntary actions, while the somatic nervous system controls voluntary movements.

Front

What is the function of the skeletal system?

Back

The skeletal system provides structure, support, and protection for the body.