REVIEWING ENERGY ROLESCONSUMERS
There are 3 types of consumers:
LATIN ROOT "vorare" means to eat
HERBIVORES - consumers that eat only plants (think herba means grass or herb in Latin)
CARNIVORE - eat only animals -(carnis is Latin for flesh) - some carnivores are scavengers . Scavengers feed on bodies of dead organisms (like a vulture).
OMNIVORE - Omni mean all - so they eat both herbs and animals.
REVIEWING ENERGY ROLESDECOMPOSERS
First-Level and Second-Level ConsumersIn a food chain, the producer ALWAYS comes first. Then you have a first-level consumer such as the giraffe in the video. The first level consumer eats the producer directly. Then you have the second-level consumer. That was the lion. The second level consumer doesn't eat the producer directly, but eats the first-level consumer.
A little music to help you remember....
Food WebA food web is a little more complicated. A food chain shows one possible path. A food web consists of many overlapping food chains in an ecosystem.
UNDERSTANDING FOOD WEBS
ENERGY PYRAMIDSA diagram called an energy pyramid shows the amount of energy that moves from one feeding level to another in a food web. The most energy available is at the producer level. At each level there is less energy that at the level below.
The fastest way to carry out formative assessments in class