Characteristics of life Mr. Douglas EDHS Biology

What makes something Alive? Movement? Water moves

What makes something Alive? Breathing, eating? Fires needs oxygen and fuel

What makes something Alive? reproduction? robots can be Programmed to make more of themselves

Turn to Your Neighbor…… Which of these characteristics is the most important, and why?

Alive!!! What makes something Alive? Biologists have come up with a list of Characteristics. If something has or has had all these characteristics, it is an Organism. It is alive! Alive!!!

Characteristics of life Grows and Develops all organisms grow and develop over time.

Characteristics of life Reproduction

Turn to your neighbor…….

Characteristics of life Adaptations evolve over time an adaptation is any inherited characteristic that results from changes to a species over time

Characteristics of life Made up of one or more cells The cell is the basic unit of life. From unicellular organisms like Bacteria to multicellular organisms like you and me

Characteristics of life Requires energy All organisms need to make their own food (autotroph) Or eat something that made it’s own food (heterotroph)

Characteristics of life Responds to stimuli Stimulus = any thing that makes a reaction or a response in a organism stimulus Response

Characteristics of life Maintains homeostasis Regulation of an organisms internal environment to maintain life

Characteristics of life Displays organization All living things display levels of organization

The end