Scientific Taxonomy
Tree of Life
Scientific Taxonomy
Scientific Taxonomy
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Did King Phillip Cry Out, "For Goodness Sakes!"?
Domains
Prokaryotes
Simple
 No nucleus
 Small

Archaea
Bacteria
Eukaryotes
Larger than prokaryotic cells
 Have specialized structures called
organelles
 You are made of eukaryotic cells

Kingdoms
Kingdom Plantae
Kingdom Animalia
Kingdom Fungi
Kingdom Protista
Protists
Protozoa, algae,
slime molds
 Mostly single celled

(A) a diatom an autrophic protist, (B) a herbivorous oligotrich ciliate, (C) a herbivorous tintinnid ciliate,
(D) a dinoflagellate, and (E) a radiolarian. Images by J.R. Dolan
(From http://www.eoearth.org/article/Marine_microbes)
Plants
Cell wall,
chloroplasts
 Autotrophic
(makes own food)
 Trees, mosses,
ferns

Fungi
Cell wall
 Heterotrophic
(cannot make own
food)
 Yeast, mushrooms

Animals
Motile
 Heterotrophic
(cannot make own
food)
 Worms, insects,
vertebrates, “us”

Classification
Classification
Leopard Classification
Tree of Life

http://tolweb.org/tree/
What is a bug?

Domain = Eukarya
Kingdom= Animalia

Bugs belong to a phylum called
Arthropoda
Characteristics of Arthropods
1.
2.
3.
4.
5.
Bilateral symmetry
Segmented body
Hard exoskeleton
Jointed legs
Many pairs of limbs
Classes of Arthropods
Many classes
 Include insects, arachnids, myriapods, and
crustaceans

Classifying Bugs
Arthropods
Insect
Arachnid
Crustacean
Myriapod
three body
parts
two body
parts
two main body
parts
long
segmented
body
three pairs of
legs
four pair of
legs
five to seven
pairs of legs
one or two pair
of legs per
segment
one pair of
antenna
no antenna
two pairs of
antennae
short or long
antennae
no wings
no wings
may or may
no wings
not have wings
use gills to
breathe
Activity 1
Sort the pictures of arthropods any way
you choose.
 You must be able to state a reason for the
categories.

Activity 2

Sort your piles of pictures again by
separating the insects from the noninsects.
Activity 3

Sort your group of arthropods into insects,
arachnids, myriapods, and crustaceans.