Why is precise communication crucial in 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

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

Where does the esophagus lead to in a frog?