Alunar eclipse must occur during a phase of the moon. by filling in the blank also subject is science.

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 correctly describes crossing over ?

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna. (60 points to the person who answers)