To determine how old Neandertal fossils are, researchers must use radiometric dating. They use an isotope with a half-life of 12,000 years, and find that fossils from one Neandertal have 1/256th (=1/28) of the isotope found in currently living organisms. How old would you predict these Neandertal fossils to be?

How does a lytic infection differ from a lysogenic infection?

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge

The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?