All living cells use the molecule adenosine triphosphate (ATP)
A) to carry oxygen into cells
B) to catalyze biochemical reactions
C) as a building block for nucleic acids
D) to store and release energy for biochemical processes
Question 2
Isotopic evidence for the presence significant quantities of liquid water on Mars in the past comes from the observation of
A) an elevated ratio of deuterium to hydrogen
B) an elevated ratio of hydrogen to deuterium
C) a complete absence of hydrogen in the atmosphere
D) a complete absence of deuterium in the atmosphere
Blood Cells
Dental Pulp Stem Cells
Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes
The flammable range consists of the concentration of fuel that will burn in atmospheric oxygen—the ...
Energy flows from the environment into living organisms, then back to the environment