1. What are they key characteristics scientists look for to figure of it something is real science or pseudoscience? 2. What are the five main steps in the scientific method?

3.What is a physical property?

4. What are the two types of physical properties?

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.