What was unknown to scientists during wegener’s time (1 point)

How are tumors cells different from normal cells

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

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