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The Characteristics of Life

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by

Josh Elliott

on 5 September 2013

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Transcript of The Characteristics of Life

Intro
to
Biology

Chapter 1:
The Characteristics of Life
Homeostasis
the ability to maintain a
constant
, stable internal environment suitable for
survival
Grow and Develop
Growth is forming
new
structures
and getting bigger.

Development
is
all of the changes
in one's life.
Adaptation
React to Stimuli
A
stimulus
is anything in an organism's environment that causes it to react; a
response
is a reaction to a stimulus.
What is
Use Energy
Energy
is the ability to do work
Reproduction
Making babies...
the ability to produce
offspring
Organization
Have
cells
as their basic unit of life;
enable organisms to be very
complex
Evolution
The gradual
genetic
change in a species over time
(can lead to adaptations).
Biology is the study of Life.
So...

What do Biologists study (about life)?
The Interactions of
living things

Ex.
What does it need to survive?
The interaction of living things and the
environment

Ex. How does one affect the other?

Problems and
possible solutions

Ex. What can we do about
endangered species?
Ecology







The study of the
environment
.
5 Major Branches of Biology
Botany


The study of Plants
Zoology



The study of
animals
.
Anatomy and Physiology

the study of the
structures
and
functions
of the body
Microbiology

The study of microorganisms
But...
What does it mean to be alive?
An Organism is...

Anything that possesses all of the characteristics of life.
A Species is...

A group of organisms that can interbreed
and produce fertile offspring.
The ability to adjust to
environmental factors

such as air, weather, or temperature


OR


within the body
.
involves
metabolism
which
is all of the chemical reactions
that take place in your body.
IS
Life
Full transcript