Download Unity of Life

April 21, 2018 | Author: Anonymous | Category: , Social Science, Anthropology, Human Evolution
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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 • Developmentnumber of cells change in a single which leads to individual during increase in size. life cycle.

Cells- Similar but Different

Diversity •Life is arranged into 3 Domains

Evolution •Explains the Unity & Diversity of Life

Charles Darwin • Descent with Modifications • Natural Selection

2 Observable Features

• Individual Variation • Unequal Reproductive Success

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