What happens during anaphase?

a. spindle fibers attach to the chromatids.

b. the chromatids are pulled apart.

c. a new nucleus forms around each copy of dna.

d. the mitotic spindle forms.

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.