An organism that can make its own food. They are the source of ALL the food in the ecosystem.

An organism that obtains energy by feeding on other organisms.

A consumer that eats only plants.

Caterpillars and deer

Both are examples of herbivores

Consumers that eat only animals.

Both are examples of carnivores

Consumers that eat both plants and animals.

A carnivore that feeds on the bodies of dead organisms. Examples: Catfish and vultures

___________ break down wastes and dead organisms and return the raw materials to the ecosystem.

Shows the amount of energy that moves from one feeding level to another in a food web.

Each of the organisms in an ecosystem fills the ______________ ________ of producer, consumer, or decomposer.

A ___________ ___________ is a series of events in which one organism eats another and obtains energy.

The first organism in a food chain _________________________, such as a tree.

The second organism feeds on the producer and is called a _________________________.

second-level consumer; woodpecker

Next, a________________________________ eats the first-level consumer. The second-level consumer on p. 44 is a ___________________.

algae (producer)---tadpole (first-level consumer)---heron (second-level consumer)

Identify energy roles of the following organisms in a pond ecosystem: tadpole; algae, heron

A food web consists of many overlapping food chains in an ecosystem. Most organisms do not eat the same things everyday.

Why is a food web a more realistic way of portraying an ecosystem that a food chain?

Only about 10% of the energy at one level of a food web is transferred to the next higher level. The other 90% is used for organism's life processes or is lost to the environment as heat.

How does the amount of energy available at one level of an energy pyramid compare to the amount of energy available at the next level up?

Since so much energy is lost at each level the amount of energy available at the producer level limits the number of consumers that the ecosystem is able to support.

Why are there usually few organisms at the top of an energy pyramid?

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Chapter 2-1 Science

6th Grade Study Cards

Term	Definition
producer	An organism that can make its own food. They are the source of ALL the food in the ecosystem.
consumer	An organism that obtains energy by feeding on other organisms.
herbivores	A consumer that eats only plants.
Caterpillars and deer	Both are examples of herbivores
carnivores	Consumers that eat only animals.
Lions and spiders	Both are examples of carnivores
Omnivores	Consumers that eat both plants and animals.
Crows, bears, and most humans	All are examples of omnivores.
scavenger	A carnivore that feeds on the bodies of dead organisms. Examples: Catfish and vultures
decomposers	___________ break down wastes and dead organisms and return the raw materials to the ecosystem.
Nature's recyclers	decomposers
Mushrooms and bacteria	Both are common decomposers
Energy Pyramid	Shows the amount of energy that moves from one feeding level to another in a food web.
energy role	Each of the organisms in an ecosystem fills the ______________ ________ of producer, consumer, or decomposer.
food chain	A ___________ ___________ is a series of events in which one organism eats another and obtains energy.
is always a producer	The first organism in a food chain _________________________, such as a tree.
first-level consumer	The second organism feeds on the producer and is called a _________________________.
second-level consumer; woodpecker	Next, a________________________________ eats the first-level consumer. The second-level consumer on p. 44 is a ___________________.
algae (producer)---tadpole (first-level consumer)---heron (second-level consumer)	Identify energy roles of the following organisms in a pond ecosystem: tadpole; algae, heron
A food web consists of many overlapping food chains in an ecosystem. Most organisms do not eat the same things everyday.	Why is a food web a more realistic way of portraying an ecosystem that a food chain?
Only about 10% of the energy at one level of a food web is transferred to the next higher level. The other 90% is used for organism's life processes or is lost to the environment as heat.	How does the amount of energy available at one level of an energy pyramid compare to the amount of energy available at the next level up?
Since so much energy is lost at each level the amount of energy available at the producer level limits the number of consumers that the ecosystem is able to support.	Why are there usually few organisms at the top of an energy pyramid?

Created by: dsimmons

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