Body Organization

Levels of organization, smallest to largest.

• Cells, tissue, organs, organ systems, organisms

• Tissue, organisms, organ systems, cells, organs

• Cells, organs, organ systems, tissue, organisms

The control center of the cell is the

• cytoplasm

• cell membrane

• nucleus

• chromosome

A tissue that has the ability to contract is

• nerve tissue

• epithelial tissue

• muscle tissue

• connective tissue

True or False The least complex level of organization of the human body is a(n) organ.

• True

• False

True or False As one moves from tissues or organs, the levels become less complex.

• True

• False

The two systems that control body functions are the

• digestive and circulatory system

• excretory and nervous systems

• nervous and endocrine systems

• endocrine and respiratory systems

Which of the following is not a stimulus?

• hearing a loud noise

• sneezing

• touching a hot object

• tasting a lemon

The gas cells need in order to release energy from sugar molecules is

• carbon dioxide

• water vapor

• nitrogen

• oxygen

The muscles attached to bones that prove the force to move the bones are

• striated muscles

• skeletal muscles

• smooth muscles

• connective muscles

True or False The elbow and shoulder are examples of joints?

• False

• True