Recently, scientists have been able to use to find common
proteins and amino acids to determine how closely related species are. *

Fossils

vestigial structures

DNA

homologous structures

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

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.