Excess Nitrates in the water supply
Answer:Option A
Explanation: The snail breaths in the O2 which will then exhale CO2, therefore the plant will take that and process the CO2 back into O2.
Tissues arranged together make up organs, which, when functioning together in groups, make up organ systems. This statement refers to the levels of the organization of life in organisms. Tissues came originally from cells, which are the building blocks of life and is the main composition of all living organisms. Both plants and animals have tissues that serve different functions to maintain homeostasis within its respective bodies. Organ systems are developed when organs work together in perfect balance to perform multiple chemical and physical processes within the body. If one organ does not function well it may affect how the other function as well.
These are called autosomal cells. I hope this helps
