Which of the following is NOT normally used to determine how a species is classified?
A. DNA
B. skeletal features
C. food preference
D. physical characteristics

What was photo 51 with rosalind franklin?

Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis