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How many can you name?
- the process by which living things take in
materials from its environment for growth and
repair; there are 2 types
1) autotrophic nutrition - where a living
Organism can make its own food
2) heterotrophic nutrition--where a organism must
ingest (take in) its food
taking in food from the environment
breaks down food molecules
into a usable form
Mechanical digestion
chews or grinds food.
Horse Chewing
HotDogs
Chemical digestion
breaks down the food
molecules.
The removal of undigested waste
from the body.

the process by which usable materials
are taken into the living thing
(ABSORPTION) and distributed
throughout the living thing
(CIRCULATION)
◦ Examples:
 Circulatory system- blood carries
materials needed for body ( oxygen,
nutrients, hormones)
 Cytoplasm – liquid
 within the cell
Respiration – The release of energy from the
food and oxygen we take in.
Mitochondria is the Organelle that performs
_____________
respiration.

There are two types:
◦ Aerobic- uses oxygen to make energy long
sustained periods of energy.
◦ Anaerobic- does not use oxygen to make energy. It
is Short bursts of energy.

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The process by which smaller, simple substances
are combined chemically to form larger, more
complex substances.
Think Legos
Lego Prank
the process by which living
things increase in size or cell
number.
Dog Growth
Human Growth

Excretion – the removal of liquid and gaseous
wastes.
Egestion - the removal of solid wastes undigestable
wastes. (Remember eGestion is Gross)
City Kitty
METABOLIC WASTES are produced
as organisms perform their life
processes.
In humans, these wastes include:
WATER
SALT
CARBON DIOXIDE
and UREA.
Organisms that perform photosynthesis
produce oxygen as a waste.

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
Regulation - Control of all activities in an
organism.
This helps maintain balance (Homeostasis).
2 body systems work to maintain this-Nervous and
Endocrine(hormones)


Production of a new individual.
(Not needed for the individual to survive.
BUT Must have for the species to survive.)
Two Types:
Sexual- 2 Parents
Asexual- 1 Parent
ASEXUAL REPRODUCTION
Only one parent
contributes DNA.
Offspring are
genetically identical
to that parent.
SEXUAL REPRODUCTION
Two parents
contribute DNA.
Offspring show a
combination of the
characteristics of
both parents.
male
lion
female
tiger
Liger Video
baby liger
tigon offspring
male tiger x female lion
Video
male donkey x female horse
male horse x female donkey
mule
hinny

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R- Respiration
R- Regulation
R- Reproduction
E- Excretion
G- Growth
N- Nutrition
T- Transport
S- Synthesis
RRREGNTS
SUMMARY
1. All living things share certain
characteristics that distinguish them from
non-living things.
2. The way living things carry out these
processes may be different.
3. Non-living things lack the metabolic
processes that maintain homeostasis.

Metabolism - the total of all 8 life processes.
 When a person states he has high or low metabolism
this is what they are talking about. It is the
combination of all the life functions working together.
R R R E G N T S = METABOLISM

Is the body maintaining internal balance.
 When all the life processes are occurring normally, it is
maintaining homeostasis.



If a body is not in homeostasis then
FEEDBACK MECHANINSMS kick in
Examples:
Body Temperature Sweating –cools body
 Shivering- heats the body

Sugar Levels-
◦ Pancreas produces hormone called Insulinmaintains glucose (sugar) levels

A Virus is an exception. It cannot carry out all
the life processes. To stay alive a virus must
invade the cell of a living organism. It needs a
Host cell to stay alive.
LET’S PRACTICE :
People who study biology are
concerned with
1. everything on earth
2. all living things
3. only animals
4. only plants
LET’S PRACTICE :
The removal of cellular waste
from an organism is called
1. excretion
2. nutrition
3. transport
4. respiration
LET’S PRACTICE :
The energy present in food molecules
is released by the process of
1. nutrition
2. excretion
3. digestion
4. respiration
LET’S PRACTICE :
Making complex substances from
simpler ones is
1. regulation
2. digestion
3. synthesis
4. reproduction
LET’S PRACTICE :
The stability of an organism's
internal environment is called
1. homeostasis
2. metabolism
3. synthesis
4. respiration