Answer: Their growth is strongly affected by the environmental conditions found in the root zone.
Explanation: To survive and grow, they need Air (gas exchange), Water, Non-limiting Temperature, Carbohydrates, Minerals, Space, Low Soil Density, Microbial Associations and Non-toxic soil chemistry.
a layer of cells in a plant stem from which new tissue grows
This is known as the <span>a biogeochemical cycle. This is a very broad term given for any substance that cycles through biotic (biological) and abiotic compartments on Earth. These cycles are known for</span><span> carbon, oxygen, nitrogen, phosphorus, sulfur, and water. The water or hydrological cycle is arguably the most well-known cycle. Water cycles between water vapor in the clouds, rainfall, rivers lakes and ocean as well as ground water and back into water vapour. During the terrestrial phase, water also passes through plants and animals.</span>
They have little things at the ends that are almost like sensors that detect and analyze what you're supposed to feel and they send a signal to you brain to tell you how to react.
I believe it is C, as this would logically the least harmful to an ecosystem.