A&P 1 Ch. 1 The Human Body: An Orientation

The smallest independently functioning unit of an organism is a(n) ________.

• cell

• molecule

• organ

• tissue

A collection of similar tissues that performs a specific function is an ________.

• organ

• organelle

• organ system

• organism

The body system responsible for structural support and movement is the ________.

• skeletal system

• muscular system

• endocrine system

• cardiovascular system

The heart is within the ________.

• cranial cavity

• mediastinum

• abdominal cavity

• pelvic cavity

cells→ ___→ organs→ organ systems→ organism

What can fit in the blank?

• Macromolecules

• Cell Products

• Proteins

• Tissues

The highest level of structural organization.

• Cell

• Organ System

• Organism

This system is the external covering of the body.

• Endocrine

• Integumentary

• Lymphatic