Question 1

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called

Accepted Answer

homeostasis.

Answer

digestion.

Answer

healing.

Answer

respiration.

Question 2

What structure directs the activities of a cell?

Accepted Answer

nucleus

Answer

cytoplasm

Answer

cell membrane

Answer

cartilage

Question 3

Which organ system makes blood cells?

Accepted Answer

skeletal system

Answer

digestive system

Answer

nervous system

Answer

circulatory system

Question 4

Which of the following is NOT a function of the skeleton?

Accepted Answer

obtaining oxygen

Answer

protecting internal organs

Answer

providing shape and support for the body

Answer

producing blood cells

Question 5

The spaces in bones are filled with a soft connective tissue called

Accepted Answer

marrow.

Answer

cartilage.

Answer

water.

Answer

blood.

Question 6

How does exercise help maintain healthy bones?

Accepted Answer

by making bones grow stronger and denser

Answer

by decreasing the need for calcium in the bones

Answer

by making bones produce stronger outer membranes

Answer

by decreasing the need for phosphorus in the bones

Question 7

Which type of muscle is found only in the heart?

Accepted Answer

cardiac

Answer

voluntary

Answer

smooth

Answer

soft

Question 8

How do pairs of skeletal muscles work together?

Accepted Answer

While one muscle in the pair contracts, the other returns to its original length.

Answer

Both muscles extend at the same time.

Answer

One muscle in the pair pulls on a bone, while the second muscle pulls on the first muscle.

Answer

How do pairs of skeletal muscles work together?

Question 9

How does the skin protect the body from disease?

Accepted Answer

by keeping disease-causing microorganisms from entering the body

Answer

by gathering information about the environment

Answer

by increasing body temperature when it is cold

Answer

by supplying water to the body through the pores

Question 10

Washing your skin helps prevent

Accepted Answer

acne.

Answer

chapping.

Answer

skin cancer.

Answer

sunburn.

Question 11

The bones that form the backbone are called

Accepted Answer

vertebrae.

Answer

carpals.

Answer

tibia.

Answer

metatarsals.

Question 12

What is the best way to prevent osteoporosis?

Accepted Answer

Exercise regularly and include calcium in your diet.

Answer

Eat more green vegetables and red meats.

Answer

Reduce exercise and add phosphorus to your diet.

Answer

Get plenty of bedrest.

Question 13

Which of the following is the MOST likely procedure for treating severe arthritis of the knee?

Accepted Answer

X-rays followed by joint replacement

Answer

MRI followed by wearing a cast

Answer

bed rest followed by exercise

Answer

wearing a cast followed by bed rest

Question 14

What type of muscle is indicated in the picture?

Accepted Answer

skeletal

Answer

cardiac

Answer

epithial

Answer

smooth

Question 15

Look carefully at the picture.  Where in the body is this cardiac muscle found?

Accepted Answer

heart

Answer

stomach

Answer

femur

Answer

skeletal

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