If a muscle is under voluntary control that means

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

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

Which organelle breaks down sugar molecules that supply energy to the cell ?