Life:

Characteristics of Life

highly organized and contain complex chemical substances

one or more cells

use energy

definite form and limited size

limited life span

grow

respond to environmental change

reproduce

evolve over long periods of time

Processes or Functions in Living Systems:

Nutrition

Transport

Respiration

Synthesis and Assimilation

Growth

Excretion

Regulation

Reproduction

Metabolism

key vocab word:

homeostasis