Please Help: Question 1: Why are plastics called polymers? Explain the nature of a polymer. Question 2: Why is carbon able to form so many molecules? Name two examples of molecules containing carbon. Question 3: Discuss the four macromolecules that occur in nature, including the building block units of each different macromolecule. ( Only answer if you know the answers to all 3 questions) Will Mark Brainliest.​

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

What is the next step in muscle contraction after the actin changes shape? (apex)

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.