Peoples bodies need more oxygen-rich blood when they are
a) eating
b) resting
c) running
d) studying

What is the cause hearing loss in human being

What is the period of cell life when it is conducting

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals