Transcript Characteristics of Living Things

Characteristics of Living Things
What is Biology?
1. The study of living things
(organisms)
2. The study of interactions of
living things
3. bio -life
ology-study of
Intro to the Characteristics of Life
8 Characteristics of Life
Unicellular
Living Things are:
1. Made up of Cells
a) _______:
Cell Collection of living
material enclosed within a
barrier
b) Cells are basic unit of life
Unicellular made up of one
_______________:
cell
Multicellular made up of
_________________:
many cells
Multicellular
Muscle cell
Smooth muscle tissue
Stomach
Digestive system
c) Levels of organization
Cells have an ________________________
orderly structure
Ex: cells make up tissues, tissues make up organs,
and organs make up systems
Go to
Section:
2. Reproduce:
Asexual
a) produce offspring which
resemble parents
Asexual Reproduction:
______________
has only one parent, same DNA
Sexual Reproduction:
_____________
requires two parents
Sexual
3. Grow and Develop
Growth
a) __________________:
increase in size and shape
Development
b) __________________________:
mature over time
c) living things have a lifespan
Growth
Growth
Development
4. Livings things are based on a universal
genetic code
a) _____________DeoxyriboNucleic Acid
DNA
RNA
b) _____________RiboNucleic Acid
c) determines inherited traits from parents
5. Use/Need Energy
a) Energy comes from food, used to maintain body
___________________:
produce their own food
Autotroph
___________________:
Heterotroph must consume food
Decomposer break down dead material for food
__________________:
b) Chemical reactions of life are called
metabolism
________________
6. Respond to their
surroundings
a.) they react to a
______________________
stimulus
(a signal)
b.) an action causes a
__________________;
which is
reaction
response
called a ___________________
7. Maintain a stable internal
environment
a) _______________________process by
Homeostasis
which organisms maintain a relatively
stable internal environment
EX: sweating, panting, shivering, etc.
8. Adapt & Evolve
a) Any structure, behavior, or internal
process that helps an organism
survive (usually from previous
generations) is called an
adaptation
_______________________________
Evolution
b) _____________________:
Accumulation of
adaptations (change) in a population over
time; these changes take place over a long
period of time involving the entire species
Characteristics of Living Things
Characteristic
Examples
Living things are made up of units called
cells.
Many microorganisms consist of only a single cell.
Animals and trees are multicellular.
Living things reproduce.
Maple trees reproduce sexually. A hydra can reproduce
asexually by budding.
Living things are based on a universal
genetic code.
Flies produce flies. Dogs produce dogs. Seeds from
maple trees produce maple trees.
Living things grow and develop.
Flies begin life as eggs, then become maggots, and then
become adult flies.
Living things obtain and use materials and
energy.
Plants obtain their energy from sunlight. Animals obtain
their energy from the food they eat.
Living things respond to their environment.
Leaves and stems of plants grow toward light.
Living things maintain a stable internal
environment.
Despite changes in the temperature of the environment,
a robin maintains a constant body temperature.
Taken as a group, living things change over
Gotime.
to
Section:
Plants that live in the desert survive because they have
become adapted to the conditions of the desert.
So, let’s see what
we’ve learned so
far…
The following are all examples of the characteristics of
life. Identify each one.
A. Adapt
D. genetic code
G. Respond to stimulus
B. Made of cells
E. Grow and develop H. Homeostasis
C. Reproduce
F. Use/need energy
1. You eat a hamburger for lunch. E, F
2. A baby gains 3 pounds in one week and begins to
recognize voices. E, G
3. A polar bear has white fur to blend in with the snow. A
4. Your start to cry whenever you get a shot at the doctor’s
office. G
5. You begin to shiver because it is cold outside. H,G