Most organisms in a food web are algae,phytoplankton<span>,</span>
When the concentration gradient of such molecules is high on the either the cytoplasmic side or the extracellular side of the cell. When the concentration gradient is high it flows freely through the cell membrane to the other side without expanding energy.
Hope i helped!
Those receptors are located in the head, where the eyes and ears are located.
It could possibly harm other plants and if those plants become less and are a good source for animals, the animals would most likely die
