Teah- 1.9 Trophic Levels

1st law of thermodynamics

energy is never created or destroyed

food webs

demonstrate conservation of energy

2nd law

each time energy is transferred some of it is lost as heat

Tertiary Consumers

animals that eat secondary consumers or carnivores & omnivores

secondary consumers

animals that eat primary consumers or herbivores

primary consumers

animals that eat plants

producers

"produce"- really convert sun's light energy into chemical energy

what do arrows in a food web represent?

indicate direction of energy flow (point to the org. taking in the energy)

food chain

Food chains just show one, linear path of energy & matter while Food webs have at least 2 different, interconnected food chains

trophic cascade

removal or addition of a top predator has a ripple effect down through lower troph. Levels