LIFE

SO….What does it mean to be living? Biology…What is it? Biology is the study of life. SO….What does it mean to be living?

Characteristics of Life To be considered living, an organism must….. Be based on a universal genetic code. DNA or RNA 2. Grow and develop

Characteristics of Life 3. Be able to Reproduce -Asexually (individually) -Sexually (requires 2 types of cells) 4. Use materials and energy -Metabolism

Characteristics of Life 5. Be able to respond to their environment (move) -stimulus response Humans: Plants:

Characteristics of Life 6. Maintain stable internal environment -Homeostasis

Characteristics of Life Change over time, as a group. -Evolution (Who knows the general trend of human height? 7 b) Adapt to their environment -the changes in #7 are not random

Characteristics of Life Made of units called Cells -Unicellular -Multicellular

Characteristics of Life 9. Living things have some level of Cellular organization Ie. Cells preform different functions

Characteristics of Life All living organisms eventually die. RIP

Should The following be classified as living?