Musculoskeletal & Nervous Systems Quiz2

Which statement best explains why scientific knowledge improves over time?

• Scientific experiments can be repeated under different conditions with the same results.

• Scientific data can be interpreted differently based on personal beliefs.

• Scientific theories are considered laws once they are proven by many scientists.

• Scientific ideas change as new information is collected and interpreted.

When your triceps muscles contract, your arm (a)   .

• bends

• brakes

• straightens

• drags

Blood cells are produced in the muscle tissues.

• True

• False

The spinal cord and the vertebrae are the exact same thing.

• True

• False

Nerves that control heartbeat and digestion are (a)   nerves.

• autonomic

• voluntary

• chemical

• large

Muscles are connected to bones by: (A) ligaments (B) tendons (C) air (D) muscles.

• ligaments

• tendons

• air

• muscles

What vital soft tissue organ is protected by the skull?

• nose

• heart

• brain

• ear

Which statement is true? (A) Biologists and geologists should not share information. (B) Scientific knowledge grows only if scientists agree. (C) New evidence cannot be used to change a scientific theory. (D) Scientific knowledge is constantly changing.

• Biologists and geologists should not share information.

• Scientific knowledge grows only if scientists agree.

• New evidence cannot be used to change a scientific theory.

• Scientific knowledge is constantly changing.

Your spinal cord is part of your central nervous system.

• True

• False

Cranial nerves and spinal nerves are your peripheral nervous system.

• True

• False