Hey:)
Bottled water is definitely not a long-term plan.
Reducing the water consumption does not really solve the problem.
Store the rain water is a nice choice, but you cannot drink the rain water directly, it needs to be filtered.
Since the contamination is only caused by N and P, it should be easy to filter out, but still, it depends on the type of the compound of N and P.
I would choose the last option.
The answer is a. the abiotic components of an ecosystem
Plasma Membrane is the answer
Biologists recognize five levels of cell organization. The lowest and simplest is the cellular level. Organisms here are either unicellular organisms, like protozoa, or colonial organisms. Colonial organisms are composed of single-celled individuals that stay together to sustain the life of the whole colony. Next on the scale of complexity is the level occupied by tissue. A tissue is a group of similar cells that perform a similar activity. Tissues that are organized around a common function together make up an organ, the third level of complexity. The fourth level of organization is the system, formed by a group of organs that together perform a specific bodily process. The fifth and highest level is the organism level, in which body systems work together in a structure capable of independent life.
