Prokaryotes . have membrane-bound organelles have a cell membrane have DNA spread throughout their cytoplasm have a membrane-bound nucleus do not have membrane-bound organelles

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

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes