Energy GO Notes

All living things must have ______________ in order to maintain ______________________.

ENERGYHOMEOSTAS

IS

Homeostasis:Maintain equilibrium

Example?

#1 Energy Source:

THE SUN!

AutotrophMakes it’s own foodGets energy from the sunPhotosynthesis

Example?Plants

AUTOTROPHS =PRODUCERS

HETEROTROPHEat food for energyCannot 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. ScavengersEat dead things.

Examples?

Buzzard

5. DecomposersBiodegrade things

Example?

Bacteria in a dumpster

ADD TO BOTTOM OF PAGEFood chains and food webs are

representations of the predator-prey relationships between species within an ecosystem or habitat.

Food ChainA 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 _______ % of energy goes to the next level.

The rest is either used or lost as _______.

10

heat

1st Trophic

Level

Autotroph- Plant, Producer

2nd Trophic Level

Primary Consumers- Herbivore- eats

producers

3rd Trophic Level

Secondary ConsumersCarnivore- Eats

herbivores (primary consumers)

4th Trophic Level

Tertiary Consumers-Carnivore- Eats

Carnivores (secondary consumers)

5th Trophic Level- Quaternary Consumers- Eat Tertiary Consumers

Scavengers, Decomposers

#1 Source of Energy!

Pyramid of Energy

Trophic level=

ENERGY LEVEL

As you move up the pyramid, energy is ___________ so the amount of energy _________________.

Lost energy must be replaced by the ___________.

DECREASESLOST

SUN

workbookPg. 29-31

Warm-UpRemember- Ch. 4 Definitions Due

TOMORROW!Pg. 83 #1-10, 11, 12, 14, 17, 18, 24, 22.

Surprise 1. 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.

A. EcologyB. EcosystemC. BiomeD. AutotrophE. Heterotrop

hF. CarnivoreG. 10%H. OmnivoreI. SunJ. Decompos

er

Honors Surprise 1. 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.