catalyst write down 2 specific examples of an organism that is a: producer: ______________ consumer:...

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CATALYST Write down 2 specific examples of an organism that is a: • Producer: ______________ • Consumer: _____________ • Decomposer: ___________ 5 minutes

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Page 1: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

CATALYSTWrite down 2 specific examples of an organism

that is a:

• Producer: ______________

• Consumer: _____________

• Decomposer: ___________

5 minutes

Page 2: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

In a food chain, nutrients and energy flow move from producers to consumers to decomposers.

Decomposers

Page 3: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

A simple example is:

berries mice black bear

Arrows show which way energy flows.

(They point to the EATER.)

Page 4: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Most food chains consist of two, three, or four transfers of energy.

Page 5: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

At each level, a certain amount of energy is also transferred to the environment as heat.

Page 6: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Each organism in a food chain represents a feeding step, or trophic level, in the passage of energy and materials.

Page 7: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Many species may occupy each trophic level in an ecosystem, so a food web is a better model because it shows all the possible feeding relationships at each tropic level in a community.

Page 8: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Organisms depend on more than one other species for food.

Page 9: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Food Webs

Page 10: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

What will happen to the snake population if the mouse population increases?

What will happen to the rabbit population if the mouse population increases?

Page 11: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes
Page 12: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Draw or write one food chain within this web.

Page 13: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

What relationship do the scorpion and grasshopper in the web have?

Page 14: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Name one role the roadrunner would have in this web.

Page 15: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

How would the lizard be affected by a decrease in the grasshopper population?

Page 16: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

Which population in this food web would most likely be negatively affected by an increase in the mouse population?

(1) snake (2) rabbit (3) wolf

(4) hawk

Page 17: CATALYST Write down 2 specific examples of an organism that is a: Producer: ______________ Consumer: _____________ Decomposer: ___________ 5 minutes

OUT

Gardeners sometimes use slug traps to capture and kill slugs. These traps were tested in a garden with a large slug population. Organisms found in the trap after one week are shown in the table below. - How many organisms in the trap were herbivores? - How many were carnivores? - How many were omnivores?