Which polysaccharide is found in the exoskeleton of some animals?

What is the most appropriate method of gaining weight (muscle mass)

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.

Which of the following terms would bb represent in an organism? a.phenotype b.genotype c.genetics