The meiotic cell cycle involves two cell divisions but only one dna replication. true or false?

Could someone me with number one you

How do adaptation affect a species?

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