WedNesday May 7th 2014
 QU: What
is a scavenger?
*Need to make up your test? Come talk to me*
**Chapter 15 Quest on Tuesday May 14th**
 OBJ: Intro
to Ecology
Biodiversity
Variety of Life on Earth
Categories of
Organisms in
an Ecosystem
Producers
Organism which makes its own food (plants)
Consumers
Organism which must eat another organism
Herbivore
Consumer which eats plants (producers)
Carnivore
Consumer which eats other animals
Omnivore
Consumer which eats plants and animals.
Decomposer
Consumer which breaks down the remains of
another dead organism into unrecognizable
materials.
Predator
Carnivore which hunts other organisms for food
Scavenger
Carnivore which finds and eats already dead
organisms
Energy
Transfer in an
Ecosystem
Biomass
Organic material manufactured by producers.
Trophic Level
Feeding level in an
ecosystem.
 QU: Keeping
a food web in mind, why
would a more diverse ecosystem be
better?

OBJ: Ch15 Notes, Fluctuations of a Food Web,
Thursday May
th
8
2014
Food Web
A pattern of energy transfer in an ecosystem
consisting of multiple varieties of food chains.
Cottonwood Tree
Rabbit
Leaf Hopper
Hawk
Sun Sunflower GrasshopperFrog Snake
Sage Brush
Mouse
Coyote
Food Chain
Pathway of energy from one trophic level to another
Sun Flower Grasshopper Frog Snake
Energy Pyramid
A diagram that shows the relationships of quantities of
energy that flow through an ecosystem.
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Sam
Sam
AJ
Jackie
Griffin
Mia
John H
Melissa
Jessica
Alex
Marcus
Isabel
Natalie
Max
Annie
Destynee
Maddie
Cali
Kim
Georgia
Dawan
David
John S
Will
Gi Gi
Ryan
Estuary Groups
Table 1
Table 2
Table 3
Table 4
Table
5
Table 6
Table 7
Table 8
Joseph
Lindsay
Louis
Jessica
Julieann
Maddie
Jack
Dan
Ashley
Graham
Joe S
Lindsay S
Isaac
Michael
Mitch
Jon G
Adam
Clark
Carol Graham G
Justin
Beth
Bradford Sydney
Abigail
Luana
Anthony
Nolan
Layla
Table 1
Table 2
Table 3
Table 4
Alec
Avery
Katie
Leah
Ashley
Steven
Zoe
Martinez David
Sarah
Chris
Ra’Dale Noah
Table 5
Table 6
Lizzie
Emma
Eric
Kalie
Will
Noah
Noelle
Table 7
Estuary Groups
Table 1
Table 2
Patrick Jalen
Miranda Lauren
Briana
Grace
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Annie
George
Caitlin
Josh
Makenzie S
Di’Amond
Jacob
Lucy
Leslee
Neely
Avery
Jack
Heidi
Lauren
Austin
Mary
Jen
Ben
Emma
Makenzie
M
CHAPTER 15 NOTES

Male Donkey + Female Horse = Mule
Biological Species Concept: A species is a
group of organisms that can breed and
produce fertile offspring.
Speciation

The creation of a new species is considered
SPECIATION.
Barriers to producing
offspring 
Reproductive Isolation –
◦ Timing – Different Breeding Seasons Ex. Jan. or Feb
◦ Behavior – Different Mating Rituals ex. Mating calls
◦ Habitat – Different habitats in the same geographical
location
Barriers to producing
offspring Geographic Isolation
 Plants
vs. Animals
◦ stationary vs. mobile
The more barriers-more speciation

Speciation: the
gradual change into
two separate species


More barriers less
likely to exchange
genetic material
The more differences  Less sharing of
material-more
the more likely we
differences occur
will create two new
species

QU: Describe a species.
HW: Due on Monday!!

OBJ: Over Ch 14 Test, Taxonomy
Friday May
th
9
2014

Answers usually vary depending where you
are at that point.
◦
◦
◦
◦
Michigan?
Another state?
Another country?
Another planet?
Where are you from?
 Saying
where you are from can be
confusing…
 Imagine trying to name every individual
species…
◦ Special way to classify all organsims!!
Called TAXONOMY…what you will be
reading about today
Can be confusing…..

QU: Why do common names present problems
to scientists?
Chapter 15 and 36 Test on THURSDAY!!

OBJ: Taxonomy and the 3 Domains
Monday May
th
12
2014

A dichotomous key is a tool that allows the
user to determine the identity of items in the
natural world.

Keys consist of a series of choices that lead the
user to the correct name of a given item.
Dichotomous Key
Dichotomous Key
Dichotomous Key

A tree that shows
evolutionary
relationships
between different
species.
Phylogenetic Tree
Phylogenetic Relationship…
 King
Peter Came Over For Good Soup
King
Phyla Class Order
Family Genus Species
How I remember the order
Classification Practice
organism #1 organism #2
organism 3
organism #4 organism #5
Kingdom
Animalia
Animalia
Animalia
Animalia
Phylum
Chordata
Chordata
Chordata
Arthropoda Anthophyta
Class
Mammalia
Mammalia
Mammalia
Insecta
Dicotyledone
s
Order
Carnivora
Carnivora
Primates
Diptera
Fagales
Family
Canidae
Canidae
Hominidae
Culicidae
Fagaceae
Genus
Canis
Canis
Homo
Culex
Quercus
Species
familiaris
lupus
sapiens
pipiens
rubra
Classification Practice
Plantae
 QU: Describe
how a phylogenetic tree
differs from a dichotomous key.
**Ch 15 and 36 Quest Thursday**
*Ch Review Due Thursday*
 OBJ:
Domain Notes and Over Homework
Tuesday May
th
13
2014
Three Domain System
 Archaea Domain
◦ Archaebacteria Kingdom


Bacteria Domain
◦ Eubacteria Kingdom

Eukarya Domain
◦ Protista Kingdom
◦ Fungi Kingdom
◦ Plantae Kingdom
◦ Animalia Kingdom
 Archaea Domain
◦microscopic organisms
◦single-celled prokaryotes.
◦exist under some of the most extreme
conditions
THE Domains
 Bacteria
Domain
◦Prokaryotic organisms
THE Domains
 Eukarya Domain
◦Eukaryotic cells
◦Unicellular (protists) or
Multicellular (most Fungi, Plantae,
and Animalia)
THE Domains

Protista: Usually unicellular, highly
specialized

Fungi: Multicellular, cell wall, lack
of mobility.

Plantae: Multicellular, cell wall,
larger, autotroph

Animalia: Multicelluar, no cell wall,
mobile
Eukarya Kingdoms…







All Handwritten notes
Food Chains and Webs
Food Webs and Chains Homework
Desktop Esutary
Taxonomy Worksheet: Chapter 15 Section 4
Dichotomous Key Homework
Chapter 15 Review
BINDER CHECK : Ecology
 QU: How
did you study for this test?
*Chapter review in homework bin*
 OBJ: Ch
15 & 36 Quest
Thursday May 15th 2014
Macroevolution
and
Speciation
Section 15.1 and 15.2
Punctuated Equilibrium

Darwin – Evolution occurs gradually
◦ Called Gradualism
◦BUT: Fossil evidence is missing transitions
SO………………….

Punctuated Equilibrium – Evolution can be rapid.
◦ Evolution is in spurts.
◦ Rapid is still 10,000’s of years.
Punctuated Equilibrium