Science Notebook - Student Edition

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Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

16 Principles of Ecology

Energy in an

Ecosystem

I found this information

on page.

Summarize three ways that organisms get energy, by completing

the table.

Section 2.2 Flow of Energy in an Ecosystem (continued)

Design your own three-step example of the flow of energy.

Classifyeach of the following organisms as an autotroph or a

heterotroph. Put an A in front of those that are autotrophs and an

H in front of those that are autotrophs.

1. Alligator 5. Moss 9. Dandelion


2. Squirrel 6. Siberian tiger 10. Rabbit


3. Maple tree^ 7. Daffodil 11. To m a t o


4. Whale 8. Rhinoceros 12. Cockroach

Type of

Organism Autotrophs

Other

name(s) for

this type

consumers, herbivores,

carnivores, scavengers,

omnivores

no other

name

Food comes

from

1.

2.

3.

Chemical

reactions that

occur

The organisms that are

eaten are turned into

energy and molecules

for the consumer’s body.

Examples