Sharks, Wales, and dolphin share Similar features such as body shape in the position of fence. However, sharks have gills for breathing, or whales and dolphins have lungs. These differences in the key to the organisms share a common ancestor for blank. Where was also possess a vestigial pelvic bone. The presence of this pelvis bone me indicate that whales blank.

The use of dna as evidence in criminal investigations became possible because of the

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.

Classify the structures as homologous or analogous, depending on their structure and function.