4th 9 Wks week 1 Ecology Day 1 & 2­Energy Pyramid

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EQ:What is the difference in a food web and 

a food chain?

Bellringer:

What are the levels of organization for living things?

4th 9 Wks week 1 Ecology Day 1 & 2­Energy Pyramid

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4th 9 Wks week 1 Ecology Day 1 & 2­Energy Pyramid

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ultimatesource ofNRG for ALLLiving Things

Producers­Plants­Photosynthesis

Autotroph

1stTrophicLevel

2ndTrophicLevel

3rdTrophicLevel

4thTrophicLevel

Primary ConsumersHerbivores­ most all

some can be omnivore ex: mouse,rabbit

Secondary Consumerscarnivores­most allsome can be omnivores

heterotroph 

Tertiary Cons.Scavengers

* * Decomposer⇒ "breaks down" the remains of once livingorganism & returns the nutrients back to the soil

90%of all energy on each tropic level is used by theorganism to maintain life

10% of all energy is available to the next tropic level& is stored in the tissue of the organism

4th 9 Wks week 1 Ecology Day 1 & 2­Energy Pyramid

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Food Chain‐ diagram that shows the flow of energy of food molecules from one

organisms to the next

Food Web‐ diagram that shows the flow if energy of from organism to the next

in an actual environment or ecosystem; several food chains connected together

Energy Pyramid‐ shows how the flow of energy moves through a food chain;

energy is lost as it moves up the pyramid

kilo calories‐ 1,000 small calories; the energy producing potential in food

trophic levels‐ the position an organism occupies in a food chain

habitat ‐ a place where an organism lives

niche‐ the role or job an organism plays in its habitat

How do organisms use energy?

walking, talking, growing, breathing, (any daily life processes)

What would happen if an organism did not have a source of energy?

the organism would not survive

4th 9 Wks week 1 Ecology Day 1 & 2­Energy Pyramid

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