A team of scientists is excavating fossils from a rock layer. They discover fossils of trilobites, which are useful as index fossils. Which information about the rock layer is provided by the trilobite fossils

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

Apatient has an open displaced fracture of the second cervical vertebra. this is her fifth visit and the fracture is healing normally. what icd-10-cm code is reported?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?