Answer:
Red blood cells are the type of cells which are responsible for the transportation of oxygen and carbon in the body.
White blood cells are the type of cells which are responsible for the protection of body against pathogens such as bacteria and viruses etc
Platelets are those cells which helps in blood cloting after injury.
Plasma is a liquid medium in which nutrients, water and blood cells are present. Its main function is to transport nutrients to the body where it is required.
Arbitrary level refers to the fundamental vertical subdivision of an excavation square, implied only when easily identifiable natural strata are absent and when natural strata are more than ten centimeters thick.
Natural strata refer to a vertical subdivision of an excavation square, which is reliant on the natural breaks in the sediments in terms of grain size, color, hardness, texture, or other features.
It is important to know the difference between the arbitrary and natural levels as arbitrary levels could amalgamate artifacts from distinct natural levels, that is, of distinct geologic contexts.
The archaeologists can recover the smallest ecofacts and artifacts with the assistance of flotation, screening, and bulk matrix processing
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