Transport of materials into a cell against a concentration gradient, from low to high, requires

A)

water.

energy

osmosis

D)

a passageway

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Hint

Structures and Functions

SB1 d) Cellular

On the periodic table, electronegativity increases as we move from the bottom to the top. What information does this give us? Bromine is more likely than chlorine to form a chemical bond.

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