You are given an unknown liquid and asked to determine its identity. you can measure only one physical property. you decide to heat the liquid. you record that the liquid turns to vapor at 100°c. this demonstrates which physical property?

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

Which of the following explains why a tree is often used as a model to represent the principle of common descent

What is the purpose of transcription? a. to copy the nucleotide in dna b. to form rna molecules from dna c. to produce a nucleic acid sequence from an amino acid sequence d. to link amino acids together to form stands of protein