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3 . : Energy, Producers, and Consumers

Vocabulary

Primary Producers

Energy From the Sun

Primary Producer

Autotroph

-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

-photosynthesis uses light energy

-carbon dioxide and water convert to oxygen

-no photosynthesis=no oxygen to breathe!!

-algae use photosynthesis in water ecosystems

An organism that can use sunlight and chemicals as energy to make their own food

The first producer of energy-rich compounds that are later used by other organisms

2 a. Explain how consumers obtain energy?

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

Photosynthesis

A process that plants use to make their own food

FIGHT NIGHT

Detritivores vs. Decomposers

Chemosynthesis

Detritivores

Decomposers

A process in which chemical energy is used to produce carbohydrates

breaks down dead matter for energy

Example- MUSHROOMS

-eats plants and animals that are dead

Example- EARTHWORMS

Section Notes

Consumer

An organism that relies on other living things for energy

Heterotroph

An organism that obtains food by consuming other living things; also called a consumer

Section Assessment

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?

Consumers

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

-heterotrophs get energy from other organisms

-consumers rely on organisms for nutrients and energy

-carnivores, scavengers, decomposers, herbivores, omnivores, detritivores

KEY QUESTIONS

Carnivore

An organism that only eats meat

Herbivore

An organism that only eats plants

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

In Your Notebook

Difference bewteen photosynthesis and chemosynthesis

Scavenger

An organism that only eats dead organisms.

Detritivore

An organism that feeds on plants and animal remains and other dead matter

Decomposer

Chemosynthesis

Photosynthesis

An organism that breaks down and obtains energy from other organisms

Omnivore

An organism that eats both plants and animals

MYSTERY CLUE

-energy used from sunlight

-plants use process to make food

producers use chemical energy

used with no light such as deep under the sea

VS

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?

Vocabulary

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