Which characteristic of birds makes them different from reptiles? they have claws. they lay eggs. they are warm-blooded. they have scaly feet?

Why is a dominant allele called dominant

One gene can influence trait(s). one trait can be determined by gene(s).

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