Download Chapter 2 Sect. 1

Chapter 2 section 1
What is life?
PROTISTS
FUNGI
PLANTS
BACTERIA
ANIMALS
ARCHAEA
Classification Groups
 Bacteria/Archaea- Prokaryotic,Unicellular, both
Hetero and Autotrophs
 Protists- Eukaryotic, Unicellular and Multicellular,
Hetero and Autotrophs
 Fungi- Eukaryotic, Unicellular and Multicellular,
Heterotrophs
 Plants- Eukaryotic, Multicellular, Autotrophs
 Animals- Eukaryotic, Multicellular, Heterotrophs
Key Terms
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Organism
Cell
Unicellular
Multicellular
Stimulus
Response
Development
Spontaneous generation
Autotroph
Heterotroph
Homeostasis
Chapter 2 Living Things
I . What is Life?
a. organisms
A. The Characteristics of Living Things
1. Cellular Organization
b.____________________
c.____________________
d.____________________
2.______________________________________________________
3.______________________________________________________
4.______________________________________________________
e.____________________
f.____________________
5.______________________________________________________
g.____________________
6.______________________________________________________
B._________________________________________________________
h.____________________
1.______________________________________________________
2.______________________________________________________
C._________________________________________________________
1.______________________________________________________
2.______________________________________________________
i.____________________
j.____________________
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k.___________________
Characteristics of Living Things
 All living things have
cellular organization,
contain similar
chemicals, use energy,
respond to their
surroundings, grow and
develop, and reproduce.
 All living things arise
from living things
through reproduction.
 All living things must
satisfy their basic needs
for water, food, living
space and stable internal
conditions.
Experiments
Pasteur’s Experiment
Redi’s Experiment
Heterotroph
Autotroph
• Heterotroph- organisms that can not make their
own food.
• Autotroph- organisms that make their own food.
• Auto- self (producer)
• Hetero- other (consumer)
• Troph- feeder
Every organism can be classified at
7 different levels - kingdom,
phylum, class, order, family, genus
and species. Each level contains
organisms with similar
characteristics. The kingdom is the
largest group and very broad. Each
successive group contains fewer
organisms, but the organisms are
more similar. The species is the
smallest group and is very narrow.
Organisms within a species are able
to mate and produce fertile
offspring.
? Assessment ?
• 1.a. List the 6 characteristics of living things?
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b. a bird sitting on a tree flies away as you walk by. Which of the life
characteristics explains the birds behavior?
• c. explain why the tree, which does not move away, is also considered
a living thing?
• 2. a. What was meant by the idea of spontaneuos generation ?
• 3.a. What four things do all organisms need to survive?
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b. Which need is a fox meeting by feeding off berries?
• c. The artic fox has thick, dense fur in the winter and much shorter
fur in the summer. How does this help the fox maintain homeostasis?