The right answer is A.
The foreshore, also called intertidal zone, is the tidal zone of the tides on the coast. The alternation of the tides which discover more or less the substrate according to the phases of the Moon determines the conditions of humidity, salinity and temperature of the foreshore.
These variations lead to a vertical ecological structuring of the foreshore in so-called supralittoral, mediolittoral and infralittoral stages. The floristic and faunistic stands of these stages are distinct, according to the requirements of organisms in water, salinity and temperature. Therefore it would be beneficial for organisms living in this period that it can live without depending on the water present in their environment since the presence of the latter is inconstant.
The foreshore is divided into several floors that correspond to different ecological conditions. These coastal stages are defined by the duration of their emergence and therefore by the level of the different tides.
Because it determines if it is isolated or not. This means if other substances can enter or not. This usually relies on the membrane with it´s pores. The pores help the membrane be selectively permeable in what it lets in and out.
I would go with B) Nerves in the finger detect stimuli and send the message to the brain.
The scientists' conclusions are most likely unreliable because <u>he asked the wrong set of people for his survey.</u> By definition, environmentalists are those people who are inclined to believing that humans are entirely responsible for creating biological foot prints all over the Earth. They always advocate the protection of the environment and even persuade people to follow suit. It is natural for them to react in such a manner that they find dams as something harmful because to them, dams destroy the natural cycle of Mother Earth.
You would use a Physical Model
