What makes something alive ?

What are living things? There are certain criteria that determine if something is living. Yes, ALL 9 criteria must be met. Do ALL 9 criteria have to be met?

Organism Anything that possesses all of the following characteristics of life. Living things are RECHARGED!!

R - All living things produce offspring. Making copies of individuals by genetic transfer, sexually or asexually. eproduce

Metabolism. Chemical and energy transformations. All organisms need energy for all life activities. Even thinking requires a considerable amount of energy. Transforming glucose into ATP for energy (to do work). E - energy

-Living organisms show an orderly structure (made up of cells) Examples: Leaf Cross-section of worm Centipede C - ells

Example: The ability to maintain internal conditions separate from an outside environment. The human body maintains an average temperature of 98.6 ºF. H - omeostasis

A living organism will respond to an environmental condition called a stimulus. An adaptation is any characteristic of an organism that improves its chances of surviving in its environment A plant growing in a specific direction due to a light stimulus. A - dapt to the environment R - espond to stimuli

All of the changes that take place during the life of an organism. Maturing. Amoeba absorbing nutrients Growth rings in a tree G - rowth Getting Bigger / Increasing material D - evelopment

Growth-increase in number of cells

The gradual accumulation of adaptations due to environmental stimuli. (Organisms with more suitable adaptations are more likely to survive and reproduce) Example: Owls, and other nocturnal animals have evolved large eyes for better night vision. E - evolve