Properties of Life

8 Characteristics of Living Things

1. Made of one or more cells

2. Displays organization

3. Grows and develops

4. Reproduces

5. Responds to stimuli

6. Requires energy

7. Maintains homeostasis

8. Adaptions/evolves over time

Biology

The "science of life" that studies all living things.

Stimulus

A signal to which an organism responds

Organism

Another name for a living thing.

Evolution

The process by which organisms as a group change over time; process by which modern organisms have desended from ancient organisms.

Metabolism

1.A set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes.

2. Involves using enery within a cell.

Homeostasis

Process by which organisms maintain a relatively stable internal environment.

Example: shivering in response to the cold.

Reproduction

Organisms producing more of its own kind.

Growth

When cells add structure to itself.

Heterotrophs

Organism that must get their energy by eating other organisms.

Autotrophs

Organisms that can make its own energy.

Unicellular

One cell.

Multicellular

Many cells.

Organisms that CAN'T photosynthesize and must get their energy by eating other organisms are called:

Heterotrophs

_________ reproduction produces offspring by combining the genetic information from 2 parents.

Sexual

An organism like an green plant that can make its own food is called a(n)

Autotroph

Humans are __________.

multicellular heterotrophs

Growning a new plant by breaking off a piece of an exsisting plant and sprouting it, is an example of _______ reproduction.

Asexual

Shivering when you get too cold is an example of which two concepts your learned about?

Homeostasis and stimulus-repsonse