Organ Systems Part 3: Question Preview (ID: 28184)

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The pigment melanin in the skin functions to
a) Surround and protect hair follicles.
b) Produce new living cells in the epidermis.
c) Keep water within the skin.
d) Help protect the skin from sunburn.

A strong connective tissues that holds movable joints together is a
a) cartilage
b) ligament
c) marrow
d) vertebrae

How do pairs of skeletal muscles work together?
a) Both muscles contract at the same time.
b) Both muscles extend at the same time.
c) ile one muscle in the pair contracts, the other returns to its original length.
d) One muscle in the pair pulls on a bone, while the second muscle pulls on the first muscle.

Which of these is NOT a function of the cardiovascular system?
a) Carrying oxygen, glucose, and other needed materials to cells.
b) Controlling many body processes by means of chemicals.
c) Carrying waste products away from cells.
d) Transporting cells that attack disease-causing microorganisms.

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called
a) digestion
b) respiration
c) healing
d) homeostasis

Messages are carried back and forth between the brain and other parts of the body by
a) The circulatory system.
b) Digestive tissue.
c) Nervous tissue.
d) Respiratory tissue.

Which organ system makes blood cells?
a) Circulatory system
b) Digestive system
c) Nervous system
d) Skeletal system

In what part of the body does most chemical digestion take place?
a) Large intestine
b) Pancreas
c) Liver
d) Small intestine

Which type of human body tissue can contract, or shorten?
a) Muscle tissue
b) Connective tissue
c) Epithelial tissue
d) Nerve tissue

Needed substances are carried to the body cells by
a) Enzymes.
b) Food.
c) Blood.
d) Water.

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