Transfer of Energy (SB4b
Name:_____________________________________
Date:___________________ Period:_________
Notes 2.6: Energy Transfer
1) How does the population of one species effect another
population?
Essential Questions
Energy Transfer
What is Energy?
· Energy is ____________________ to do ______________.
· All __________________ on Earth ______________ (comes from)
the ___________.
The Transfer of Energy
· Autotrophs - obtain energy from ______________ through
_______________.
· Autotrophs are also called ___________________.
· Heterotrophs - obtain ________________ by eating other
______________________.
Think!What is a producer? Are producers and autotrophs the same
thing? Explain.
What is an example of a producer?
What is a consumer? Are consumers and heterotrophs the same
thing? Explain.
What is an example of a consumer?
· Heterotrophs are also called ____________________.
Types of Heterotrophs
Herbivores
· Herbivores - _______ eat __________________ such as _________,
berries, and ____________________.
· Examples: ______________, deer, ______________, and
elephants.
Carnivores
· Carnivores - eat _______________________ or other
_______________.
· Examples: ______________, sharks, and ________________.
Omnivores
· Omnivores - eat _________________ and _________________.
· Examples: _____________, rats, ____________, and pigs.
Decomposers
· Decomposers - eat _____________ or
_______________________.
· Decomposers are also known as
_______________________________.
· Examples: ______________ and _______________.
Think: What type of heterotroph
1. Can eat both plants and animals?
2. A cow?
3. Can eat only other animals?
4. Eats dead or dying organisms?
5. A lion?
6. Can eat only plants?
7. A vulture?
Flow of Matter and Energy in Ecosystems
Energy Flow
· Energy __________________ in an ______________ in the form of
_____________.
· Matter – the ____________ substance that
______________________ (atoms).
Food Chain
· A Food Chain is a ___________ that shows how ____________ and
___________ move through an ____________________.
· The arrow________________ the _______________ and away from
the __________.
Nutrients and energy move from
_________________ ___________________ __________________
Think
In the food chain to the right, what is the producer?
Who eats the grass?
Who gets energy from the mouse?
Food Web
· Food web: made up of ________________________________.
· Food webs _____________________ the possible
_____________________ for each organisms
· A food web is ________________ than a _________________
because organisms depend on __________________________ other
_____________ for food.
1. What does the rabbit eat?
2. What eats the rabbit?
3. What would happen to the mouse, rabbit, and goat if all the
plants went extinct?
4. How would this affect the lion?
Food Web Levels
Level 4: _______________________ (who eat secondary
consumers)
Level 3: ______________________ (who eat primary consumers)
Level 2: ________________________ (who eat producers)
Level 1: ___________________
Food webs Classwork (SB4b)
Section 1: Use the food web to the right:
1. What does the mouse eat?
2. What does the owl eat?
3. Who eats the snake?
4. Who eats the grass?
5. What does the snake eat?
Section 2: Use the food web to the right
1. What is the predator of the snake?
2. What are predators of the frog?
3. What is the prey of the rabbit?
4. What are competitors of the deer?
5. What is a competitor of the mountain lion?
Section 3: Use the food web to the right
1. What organisms are herbivores?
2. What organisms are omnivores?
3. What organisms are carnivores?
Homework Assignment 2.6
Step 1. Draw a food web using the list of organisms below
Organisms: deer, rabbit, grass, wolf, mouse, insect, mountain
lion
Step 2. Write a paragraph describing who eats whom in the food
web. Use at least 3 of the 6 key words: predator, prey, herbivore,
omnivore, and carnivore.
(example sentence: “The deer is a predator of the mouse”)
