The reason that producers are found at the bottom of the trophic level is because producers eat plants and other things and other types of animals eat them and take their energy. Hope this helps.
Answer:
Phagocytosis is a type of endocytosis performed by phacytes. Bacteria is engulfed through phagocytosis (part of the cell membrane surrounds the bacteria inside the cell). Then lysosomes fuse with the phagosome and the bacteria is digested. After digestion, the cell perform exocytosis of waste products.
A concentration gradient is a process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles. The areas are separated by a membrane.
Hope this helped :)
Answer:
gas, liquid, solid
Explanation:
I could also list 12 other states of matter if you're interested