Trophic levels description and on how energy moves thorough each one.
First trophic level- producers
Second trophic level - primary consumers
Third trophic level-secondary consumers
Fourth trophic level-tertiary consumers
For this example it gets its energy from the sun. Also producers has the greatest energy (biomass).
This animal obtains its nutrition or energy from all the levels below it. This consumers also many eat on meat and plants. They are called apex predators. This example is a snake
Secondary consumers eat primary consumers for more energy but it doesn't only get its energy from primary but also from producers. Secondary consumer can be either carnivores or omnivores. For this one the example will be a frog.
So primary consumer depend on producers and they get more energy. In most cases primary consumers are herbivores so then producers usually are autotrophic and in this case it works. My example is a grasshopper(won't it me upload a picture).
10% of the energy is passed on to the next level. And the other 90% is lost in heat.
Other important facts about the trophic levels.
Without a level the whole thing can be messed up.
There is less and less energy as you go up the pyramid so that's why the producers has the most energy.