Answer: Geologic time is divided into units. Major changes in the earth's surface or climate and the extinction of species help to divide the time scale into smaller units.
Explanation: Rocks grouped within each unit contain a similar fossil record.
Your answer would be, Letter Choice ( A), Major differences were discovered in the structure, and operation of the different Species of Monera.
Hope that helps!!!!! (Answer: Letter Choice (A).
The most likely outcome is that the heavy metal pollutants will BIOACCUMULATE in the oysters. Bioaccumulation refers to the gradual accumulation of substances in living things.
Heavy metals include lead, cobalt, nickel, cadmium and mercury. These metals are highly toxic, thereby their bioaccumulation is dangerous for marine ecosystems and human health.
In this case, it is expected that heavy metals bioaccumulate in the internal organs of the oysters. Subsequently, these pollutants will also bioaccumulate in humans that eat contaminated oysters.
Heavy metals are highly toxic even at low concentrations, thereby their bioaccumulation is harmful to human health.
In humans, for example, it has been shown that the bioaccumulation of heavy metals affects the formation of blood cells.
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