Cells lining the gut need to take in glucose, but the concentration of extracellular glucose is LOWER than the concentration already stored in cells. a)active transport
b)simple diffusion
c) facilitated diffusion​

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils