Topic: Classification
Aim: Describe how to use dichotomous keys.
Do Now:
HW: Classification Castle Learning due
Tuesday, January 12th.
1. Identify the kingdoms that contain
Archaea, Eubacteria,
unicellular organisms. Protists, Fungi
2. Identify the kingdoms that consist of
multicellular organisms. Fungi, Plants, Animals
3. Identify the kingdoms that contain
prokaryotic cells. Archaea and Eubacteria
4. Identify the kingdoms that consist of
eukaryotic cells. Protists, Fungi, Plants,
Animals
5. Identify the kingdoms that consist of
autotrophic organisms. Protists and Plants
6. Identify the kingdoms that consist of
heterotrophic organisms. Protists, Fungi, Animals
7. Identify the kingdom that consists of
organisms that live in EXTREME
environments. Archaea bacteria
8. Identify the kingdom that contains
PROTOZOA. Are they autotrophic or
heterotrophic? Protists
Protozoa are heterotrophic.
Which kingdom does this picture represent?
Support your answer.
Archaea bacteria live in extreme
environments.
Which kingdom does this picture represent?
Support your answer.
Eubacteria are very common and can
be found in a lot of places.
Which kingdom does this picture represent?
Support your answer.
Ameba are PROTISTS. They are
heterotrophic protozoa.
Which kingdom does this picture represent?
Support your answer.
Algae are PROTISTS. They are
autotrophic.
Which kingdom does this picture represent?
Support your answer.
FUNGI are heterotrophic. They are
decomposers.
PLANTS are autotrophic. They are
multicellular.
Which kingdom does this picture represent?
Support your answer.
ANIMALS are heterotrophic. They are
multicellular.
1.What do scientists use dichotomous
keys for?
• To classify organisms into
classification categories or
taxa
2. Describe the meaning of the term
“dichotomous.”
• Divided in two parts
3. How many choices does each step
consist of?
• TWO choices
• Example:
1. A. Has a backbone.
B. Does not have a backbone
4. When using a dichotomous key,
which number (or pair) must you
always begin with?
• Always start with #1.
5. In each pair, which statement do
you read first?
• Begin with statement A.
• Example:
1. A. Has a backbone.
B. Does not have a backbone
6. Explain what to do when statement
A is correct.
• Follow the directions located to the
right.
7. Explain what to do if statement A is
incorrect.
• Read statement B and follow the
directions located to the right.
BANANA
APPLE
PEACH
Topic: Classification
Aim: Describe how to use dichotomous keys.
Do Now: Work on the Alien Dichotomous Key
on the back of the reading notes.
HW: Classification Castle Learning due
Tuesday, January 12th.
Let’s go over the DK rules.
1. Identify the number you must always start
with when your identifying an organism.
2. Identify the letter you must always start
with.
3. Explain what must be done if statement A
is correct.
4. Explain what must be done if statement A
is incorrect.
5. Explain what must be done if statement B
is correct.
How to Use a Dichotomous Key
backbone
1
2
backbone
3
backbone
No 4
backbone
1
a. Backbone . . . . . . . . . . . . . . . . go to 2
b. No backbone . . . . . . . . . . . . . go to 5
2
a. Wings . . . . . . . . . . . . . . . . . . . bat
b. No wings . . . . . . . . . . . . . . . . . go to 3
3
a. Legs . . . . . . . . . . . . . . . . . . . . go to 4
b. No legs . . . . . . . . . . . . . . . . . . snake
4
a. Shell . . . . . . . . . . . . . . . . . . . . tor toise
b. No shell . . . . . . . . . . . . . . . . . lizar d
5
a. Antenna . . . . . . . . . . . . . . . . . ant
b. No antenna . . . . . . . . . . . . . . spider
No 5
backbone
1. SNAKE
2. LIZARD
3. TORTOISE
4. SPIDER
5. ANT
6. BAT
6
backbone
1
a. Mout h open . . . . . . . . . . . . . . go t o 2
b. Mout h not open . . . . . . . . . . . go t o 4
2
a. Ar ms . . . . . . . . . . . . . . . . . . . go t o 3
b. No Ar ms . . . . . . . . . . . . . . . . . Alienus q uadlegicus
3
a. Hair y . . . . . . . . . . . . . . . . . . . Alienus hair icus
b. Not hair y . . . . . . . . . . . . . . . . Alienus t r it oot hicus
4
a. No hor ns . . . . . . . . . . . . . . . . go t o 5
b. Hor ns . . . . . . . . . . . . . . . . . . . Alienus st r ipicus
5
a. No legs . . . . . . . . . . . . . . . . . . Alienus blobicus
b. Legs . . . . . . . . . . . . . . . . . . . . Alienus f uzzicus
Wr it e your answer s below.
Alienus quadlegicus
Alienus biobicus
!
!
Alienus fuzzicus
Alienus stripicus
Alienus tritoothicus
Alienus hairicus
Each of t hese aliens belongs t o t he same genus. What is t heir genus?
Alienus
Let’s review…
1. Why do scientists use dichotomous
keys? To classify an organism into a certain taxa
2. When starting a dichotomous key, which
step or number do you ALWAYS start
with? Always start with #1.
3. How many choices are found at each
number? Two choices  A and B
4. Which choice do you always start with (A
or B)? Always start with A.
5. What do you do if the first statement (A)
is false? Read statement B.
Topic: Classification
Aim: Describe how to use dichotomous keys.
Do Now: Numbers!!!
HW: Classification Exam Review sheet due
Monday, Classification Castle Learning due
Tuesday, January 12th.
Review:
Which kingdom is made up of
unicellular organisms with no
nucleus and can be found in
hydrothermal vents?
(1.) Eubacteria
(2.) Fungi
(3.) Archaebacteria
(4.) Protists
A scientist recently discovered a pond
organism that is unicellular, contains
chloroplasts and other membranebound organelles, and possesses a
flagellum. In which kingdom is this
organism classified?
(1.) Eubacteria
(2.) Fungi
(3.) Protists
(4.) Plant
Mushrooms and molds belong to the
kingdom
(1.) Fungi
(2.) Plants
(3.) Protists
(4.) Animals
An organism that is unicellular,
contains a nucleus and is autotrophic
is classified as a
(1.) Plant
(2.) Protist
(3.) Algae
(4.) Fungi
Multicellular organisms that absorb
digested nutrients from the
environment is classified as
(1.) animals
(2.) fungi
(3.) protists
(4.) paramecia
The scientific name for a lion is
Panthera Leo. The word Panthera
tells us the lion’s
(1.) kingdom
(2.) phylum
(3.) genus
(4.) species
Members of a population of gray
squirrels, Sciurus carolinensis, are
classified in the same species because
they
(1.) obtain their food in the same manner
(2.) produce enzymes by synthesis
(3.) can mate and produce fertile offspring
(4.) live in the same area
In today’s classification system, 2
organisms would be most closely
related if they were classified in the
same
(1.) kingdom
(2.) phylum
(3.)genus
(4.)species
Review:
C6H12O6 + 6O2
 6CO2 + 6 H2O + X
1. What is the name of the process
represented above?
2. Where does this process occur?
3. What molecule does X represent?
C6H12O6  CO2 + alcohol + X
C6H12O6  lactic acid
+ X
1. Identify the type of respiration these
processes represent.
2. Identify the name and location of each of
these processes.
3. Describe what X represents.
The diagram above shows the same
type of molecule in area A and area B.
With the passage of time, some
molecules move from area A to area B.
Identify the name of this process.
Support your answer.
The diagram above shows the same
type of molecule in area A and area B.
Identify the name of this process if
some molecules move from area B to
area A. Support your answer.
The movement of materials from
lower to higher concentration
requiring energy in the form of
ATP is called
1. movement
2. diffusion
3. active transport
4. cell division
These groups of cells represent different
(1) tissues in which similar cells function together
(2) organs that help to carry out a specific life activity
(3) systems that are responsible for a specific life activity
(4) organelles that carry out different functions.