The parts of a cell are so dependent on each other that if just one part does not work right, the entire cell may not function properly. This is an example of complex .

What statements describe a host organism?

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

List five ways we are indebted to phytoplankton