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Energy, Producers, and Consumers

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by

Neil Dieujuste

on 20 April 2015

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Transcript of Energy, Producers, and Consumers

1 a. What are the two primary sources of energy that power living systems?

b. Propose a question that a scientist might ask about the variety of organisms found in deep-sea vents?

3 . : Energy, Producers, and Consumers
KEY QUESTIONS
What are primary producers?
-organisms that jump-start the food chain by creating energy for other organisms

How do consumers obtain energy and nutrients?
-get energy and nutrients from organisms they eat
Autotroph
An organism that can use sunlight and chemicals as energy to make their own food
Primary Producer
The first producer of energy-rich compounds that are later used by other organisms
Photosynthesis
A process that plants use to make their own food
Chemosynthesis
A process in which chemical energy is used to produce carbohydrates
Heterotroph
An organism that obtains food by consuming other living things; also called a consumer
Consumer
An organism that relies on other living things for energy
Vocabulary
Carnivore
An organism that only eats meat
Herbivore
An organism that only eats plants
Scavenger
An organism that only eats dead organisms.
Omnivore
An organism that eats both plants and animals
Decomposer
An organism that breaks down and obtains energy from other organisms
Vocabulary
Detritivore
An organism that feeds on plants and animal remains and other dead matter
Section Assessment
2 a. Explain how consumers obtain energy?

b. How are detritivores different from decomposers? Provide an example of each.

FIGHT NIGHT
Detritivores vs. Decomposers
Detritivores
-eats plants and animals that are dead
Example- EARTHWORMS
Decomposers
breaks down dead matter for energy
Example- MUSHROOMS
Section Notes
Primary Producers
-plants and animals get energy from sunlight
-energy is converted for other living organisms
-algae, bacteria, and plants
-autotrophs use chemical energy for food
-first producers of energy
Energy From the Sun
-photosynthesis uses light energy
-carbon dioxide and water convert to oxygen
-no photosynthesis=no oxygen to breathe!!
-algae use photosynthesis in water ecosystems
Life Without Light
-primary producers use chemical energy
-process called chemosynthesis
-chemical energy used to produce carbohydrates
-found in dark, deep areas with no light
Consumers
-heterotrophs get energy from other organisms
-consumers rely on organisms for nutrients and energy
-carnivores, scavengers, decomposers, herbivores, omnivores, detritivores

In Your Notebook
Difference bewteen photosynthesis and chemosynthesis
-energy used from sunlight

-plants use process to make food

producers use chemical energy

used with no light such as deep under the sea
Photosynthesis
Chemosynthesis
VS
MYSTERY CLUE
Bacteria are important members of the living community in Narragansett Bay. How do you think the bacterial communities on the floor of the bay might be linked to its consumers?
Full transcript