Download Ecology Part 2

Energy GO Notes
ENERGY
All living things must have ______________
in order to
HOMEOSTASIS
maintain ______________________.
Homeostasis:
 Maintain equilibrium
 Example?
#1 Energy Source:
THE SUN!
Autotroph
 Makes it’s own food
 Gets energy from the sun
 Photosynthesis
 Example?
 Plants
AUTOTROPHS = PRODUCERS
HETEROTROPH
 Eat food for energy
 Cannot make Energy
 Example?
 Animals
HETEROTROPHS
=
CONSUMERS
Types of Heterotrophs
1. Herbivore
-Eats Plants
Ex. Deer, cows
2. Carnivore
 - Eats meat
 Example?
 Lions
3. Omnivore
 -Eats Both (plants and meats!)
 Example Bear, humans
4. Scavengers
Eat dead things.
Examples?
Buzzard
5. Decomposers
 Biodegrade things
 Example?
 Bacteria in a dumpster
ADD TO BOTTOM OF PAGE
 Food chains and food webs are representations of the
predator-prey relationships between species within an
ecosystem or habitat.
Food Chain
 A series of
organisms each
dependent on the
next as a source of
food.
BrainPop!
 Food Chains
 Food Web
 A network of
many food
chains.
 Only _______
10 %
5th Trophic LevelQuaternary
Consumers- Eat
Tertiary Consumers
Scavengers, Decomposers
of energy goes
to the next level.
 The rest is either
used or lost as
_______.
heat
3rd
4th Trophic Tertiary ConsumersLevel
Carnivore- Eats Carnivores
(secondary consumers)
Trophic
Level
2nd Trophic
Level
1st Trophic
Level
#1 Source of
Energy!
Trophic level=
Secondary Consumers
ENERGY
Carnivore- Eats herbivores LEVEL
(primary consumers)
Primary ConsumersHerbivore- eats producers
Autotroph- Plant, Producer
Pyramid of Energy
LOST
 As you move up the pyramid, energy is ___________
so the amount of energy _________________.
DECREASES
SUN
 Lost energy must be replaced by the ___________.
workbook
 Pg. 29-31
Warm-Up
 Remember- Ch. 4 Definitions Due TOMORROW!
 Pg. 83 #1-10, 11, 12, 14, 17, 18, 24, 22.
Surprise 
The amount of energy transferred to the next
trophic level.
2. Organisms that rely on other organisms for their
food supply.
3. Organisms that only eat meat.
4. An organism that produces its own food.
5. The study of interactions among organisms and
their environment.
6. A collection of all the organisms that live in a
particular place, together with their nonliving
environment.
7. A group of ecosystems that have the same climate
and similar dominant communities.
8. An organism that eats meat and plants.
9. The #1 Source of Energy.
10. Organism that breaks down and obtains energy
from dead organic matter.
1.
A. Ecology
B. Ecosystem
C. Biome
D. Autotroph
E. Heterotroph
F. Carnivore
G. 10%
H. Omnivore
I.
J.
Sun
Decomposer
Honors Surprise  
All the populations of different species that occupy and are adapted to a
given area, are referred to as a(n) ________.
2. A one-way relationship where one species benefits at the expense of
another is called ________.
3. A symbiotic relationship in which both species benefit is best described
as ________.
4. In a natural community, the primary consumers are ________.
5. Bacteria and fungi act as ________ within an ecosystem.
6. All of the organisms living in a particular area make up ________.
7. The niche of an animal is best defined as?
8. A lichen is actually composed of two organisms--a fungus and an alga.
They depend on each other for survival. The most specific term that
describes their relationship is ________.
9. An organism's "trophic" level refers to ________.
10. Define abiotic factor. Give two examples.
1.