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what is the purpose of the plasma membrane?

a: makes food for the cell

b: reproduces cells

c: keeps the cell small

d: encloses specific structures

Name the part of the the brain labeled "e".

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Paleontologists have found plant fossils deep within the layers of the north polar region. these leaf fossils have been labeled as to the rock layers they were found in, with the lower numbers being layers close to the earth's surface and higher numbers representing deeper layers. according to the numbers of these four leaf fossils, what might you infer?