How do cells divide for sexual reproduction? and why? answer both parts

Why do bacteria thrive even in hostile environments

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 situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box