Unity, Diversity, &

Evolution

Unity•All Life Forms Have

Common Features

Common Properties of Life

Made of Cells

Basic unit of structure & function

Maintain a constant internal environment (homeostasis)

Examples: temperature, sugar level, salt level, hydration, etc.

Metabolism

Total of all chemical reactions.Examples:

Respond to Stimuli

Examples:

Reproduce

Essential to survival of species.

Heredity & Evolution

Heredity: Traits passed to offspring.Info found in DNA.

Evolve

Evolution: Change in species over generations.

Grow and Develop

• Growth- change in number of cells which leads to increase in size.

• Development- change in a single individual during life cycle.

Cells- Similar but Different

Review Game:

What characteristic…

Your reaction to something in your environment

RESPONSE TO A STIMULUS

The ability to maintain a constant internal environment

Homeostasis

All the building up and breaking down processes in your body

Metabolism

The ability of a species to change over time

Evolution

This molecule is found in all living things and gives us our traits

DNA

All living things are made of…

Cells

Viruses?