The transformation effect observed by Griffith was due to acquisition by non-pathogenic bacteria of plasmids containing genes conferring toxicity released by killed pathogenic bacteria. Describe how plasmids can be manipulated using restriction enzymes to include genetic material from other species and subsequently inserted into bacterial cells to amplify the foreign genes.

List two limitations of natural selection

Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.