If a nutrient is short in supply, it will limit the organisms growth.
A bioindicator is a living organism that gives us an idea of the health of an ecosystem. Some organisms are very sensitive to pollution in their environment, so if pollutants are present, the organism may change its morphologyphysiology or behaviour, or it could even die. Hope that helped!
Answer:
a,the ability to go from a single cell to multicellular organism
