What is the correct organization of the body?

Atoms, molecules, cells, tissue, organs, systems, organisms

To sustain life an organism must be able to?

Maintain movement, digest nutrients, excrete waste, reproduce itself, grow.

Survival needs?

Nutrients, oxygen, water, temperature.

Homeostasis

The body's ability to main a stable environment

Three components of homeostatic control mechanisms are?

Receptor: some type of sensor that responds to change Control Center: determines the level at which the factor is being regulated Effector: receives the output through efferent pathways from the control center.

Integumentary system

Components: skin, hair, fingernails, sweat glands, oil glands and the subcutaneous layer. Function: protects the body, helps regulate temperature, eliminates waste and detects sensations.

Skeletal system

Components: bone and joints of the body Functions; support and protect the body, provides area for muscle attachment, aids body movement and helps produce blood cells.

Muscular System

Components: skeletal muscle tissue Function: Body movement

Cardiovascular

Components: