Topic: Classification
Aim: Describe the classification system we use
today.
Do Now:
1. Take out your classification reading notes.
2. Complete Review Question 1at the end of
yesterday’s notes.
3. Take out your numbers to use at the end of the
period!
HW: Create a mnemonic device to help you
remember the 7 levels of classification.
Determine the length of each cell in um.
500um
250um 125um
Diameter = 1mm
= 1000um
250um + 125um
= 375um
Let’s think...
How would you find a box of your favorite cereal
in a grocery store that you have NEVER been
before? Would it be easy to find? Be specific
about the clues you would use to find the cereal.
1. Define classification.
• The process of dividing things into
groups.
How can we classify our class????
Do you know who the first person that
classified things was?
• Artistotle
How did Aristotle
classify living
things?
Animal Subgroups:
Land, Water, Air
Plant Subgroups:
Small, Medium,
Large
2. Identify the branch of biology that is
used for classifying and naming
organisms.
• Taxonomy
3. Identify the groups taxonomists use to
classify organisms.
• Taxonomists arrange, or classify similar
organisms into a group called a taxon.
How many
taxons are
found in this
diagram?
4. Identify or list the 7 levels of
classification.
• Kingdom
• Phylum
• Class
• Order
• Family
• Genus
• Species
5. Describe the meaning of a very broad
taxon.
• It includes many different
organisms.
• Examples???
– In broad daylight
– A broad river
6. Identify the largest and broadest taxon.
Support your answer. (How do you know?)
• Kingdom
• It contains
the largest
# of
organisms.
7. Describe why the lowest level is most
specific.
• It only
includes ONE
TYPE OF
ORGANISM.
8. Identify the SMALLEST and most specific
taxon. Support your answer.(How do you
know?)
• Species
• It only
includes one
type of
organism.
How similar are organism that share
the same species????
Organisms in a species are SO
SIMILAR that that can mate with
each other & produce fertile
offspring.
9. Identify the types of names that were
confusing to use.
• Using common names was
confusing and made
communication about organisms
difficult.
Identify the example of how common name are
confusing to use discussed in the reading.
Sea Horse
It is not a horse.
It is fish.
Sea horses range in size
from 1.5cm – 35cm.
Juveniles are exact
replicas of adults at birth
and are about 5mm-6mm
in length.
Males can receive up to
1500 eggs from the
female and carry
seahorse eggs for one
month before they hatch.
10. Explain why using taxonomy was a
better method for naming organisms.
• Using taxonomy makes it easier to
communicate with each other
about other organisms.
11. Identify the language used in an
early system of taxonomy.
• Latin
12. Describe the disadvantage (problem) of
using Latin words to describe what organisms
looked like.
• Latin words were too long and hard to
remember.
• Scientists around the world often names the
same organism using different Latin names.
The common briar rose
Some scientists named it:
Rosa sylvestris inodora seu
canina
“Odorless woodland dog rose”
Other scientists called it:
Rosa sylvestris alba cum
rubore
“Pinkish-white woodland rose
with hairless leaves”
13. Identify the inventor of the present
system of taxonomy.
• Carl Linnaeus
14. Identify the current system of naming
organisms.
• Binomial
nomenclature
Binomial nomenclature
Bi  TWO
nomial  NAME
Nomenclature:
the choosing of names for things,
especially in a science or other
discipline.
Before Linnaeus developed his naming system, plants and
animals were named by a series of Latin words that
described the physical appearance of the organism. This
was very confusing. For example, let’s look at the first
name of the honey bee.
Apis pubescens, thorace
subgriseo, abdomine fusco,
pedibus posticis glabris utrinque
margine ciliatus.
This means “fuzzy bee, light
gray middle, brown body, smooth
hind legs that have a small bag
edged with tiny hairs.” Linnaeus
named it Apis mellifera which
means “honey-bearing bee.”
15. Identify the 1st part of the scientific
name.
• Genus
16. Identify the 2nd part of the scientific
name.
• species
17. The scientific name for a cougar is
Puma concolour. Identify its genus and
species.
• Genus – Puma
• Species – concolour
Identify the genus and species for each
scientific name.
18. Panthera leo
• Genus – Panthera
• Species – leo
19. Procycon lotor (racoon)
• Genus – Procyon
• Species – lotor
20. Drosophila melanogaster (fruit fly)
• Genus – Drosophila
• Species – melanogaster
21. Tursiops truncatus (dolphin)
• Genus – Tursiops
• Species – truncatus
• Bos Grunniens (Yak)
Genus: Bos
Species: Grunniens
• Neofelis nebulosa
(Clouded leopard)
Genus: Neofelis
Species: negulosa
The scientific name for humans is
Homo sapiens. Identify the genus and
species.
• Genus – Homo
• Species – sapiens
Let’s review…
1. Identify the 7 levels of classification.
Kingdom
Phylum
Class
Order
Family
Genus
Species
2. Identify the largest or broadest level.
3. Describe the organisms found in that level.
Kingdom
•Largest group
Phylum
•Very diverse
(different)
Class
Order
Family
Genus
Species
4. Identify the smallest level.
5. Describe the organisms found in that level.
Kingdom
Phylum
Class
Order
Family
Genus
• Smallest group
Species
• VERY similar
6. Identify the system for naming organisms.
Binomial nomenclature
7. Identify the 2 levels that make up a
scientific name.
Genus and species
8. Identify the scientific name of the
humpback whale.
Megaptera novaeangliae
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
Which classification category contains
the greatest number of different types
of organisms?
(1.) kingdom
(2.) phylum
(3.) genus
(4.) species
The branch of biology that is used for
classifying and naming organisms is
known as
(1.) cytology
(2.) taxonomy
(3.) physiology
(4.) genetics
The branch of biology that is used for
classifying and naming organisms is
known as
(1.) cytology
(2.) taxonomy
(3.) physiology
(4.) genetics
Cell Transport Review:
Which process requires cellular
energy?
1. diffusion
2. passive transport
3. active transport
4. osmosis
The movement of water from
higher to lower concentration
is called
1. pinocytosis
2. active transport
3. osmosis
4. phagocytosis
Damage to which structure will most
directly disrupt water balance
within a single-celled organism?
1. ribosome
2. cell membrane
3. nucleus
4. chloroplast
Sodium ions are pumped from a region
of lower concentration to a region of
higher concentration in the nerve cells
of humans. This process is an example
of
1. diffusion
2. osmosis
3. passive transport
4. active transport
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
Kings
Play
Chess
On
Fine
Green
Stools