1. According to the fossil record, which sequence correctly represents the evolution of life on Earth?
soft-bodied organisms > amphibians > fish > mammals
O fish > amphibians > mammals > soft-bodied organisms
fish > soft-bodied organisms > mammals > amphibians
soft-bodied organisms > fish > amphibians > mammals

Identify a strong intermolecular force of attraction between an alcohol

What is the value of keq for the reaction expressed in scientific notation?

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.