whats a trophic level?

Answer 1

A trophic level is a term used in biology to categorize levels of feeding. The higher up the tropic level, the lower the amount of energy you get from eating them.
For example, rising in levels:

*fungi* *earthworms* --decomposers
*coyote* *bear* *human* --omnivores
*weasel* *mosquito* --secondary consumers
*deer* *bunny* --primary consumers
*blackberry* *hickory nuts* --producers

Now, to make sense of this. The sun is our primary source of energy, but 99% of its energy is wasted. This one percent is absorbed into the lowest level of this feeding chain above. Thus, the blackberry absorbs 1%.
Now, a cow comes along and eats that blackberry. He gets 1/10th of that one percent. On it goes up this chain, with each level losing energy. When I finally eat that cow, I get 10% of his 10% of that 1% of energy absorbed by the blackberry.... (a hundredth of a percent.)

SO every time you go up a level on the chart above, you lose energy (efficiency.) Thus, you get more energy from plants. The implications of this are astounding... think about it. Hope this helps!!!!!!!!!!

Answer 2

A trophic level is a layer in the ecosystem food web. For example, in some marine coastal environments, killer whales are the highest level in the trophic pyramid, fish are the middle layer of the pyramid, and the phytoplankton are the bottom layer of the pyramid.

The trophic pyramid is basically a food web with layers. Each trophic level is just a layer of organisms in the pyramid.

Answer 3

A trophic level is a feeding level in a food chain.

It starts with producers, then first-level consumers (herbivores), next are second-level consumers (omnivore), then teritary consumers (carnivores).

Ten percent of the KCals are transferred through each level.