What is the energy of a photon first used to do in photosynthesis?
What will be an ideal response?
energize an electron
Biology & Microbiology
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While the pH of saliva ranges from 6.5 to 11.5, the pH in the stomach is about pH 2. What would you expect the optimum pH to be for the enzymes secreted into your stomach that digest proteins into amino acids?
What will be an ideal response?
Biology & Microbiology
Why do geneticists refer to the two sugar phosphate strands of DNA as "antiparallel"?
What will be an ideal response?
Biology & Microbiology
Which of the following is considered to be the safest drinking water source?
A- a river B- a lake C- the groundwater D- the ocean E- melted snow
Biology & Microbiology
The child shown in the figure below is not feeling well. The poster says "No Antibiotics Please?" This is because his illness is caused by a virus.
a. true b. false
Biology & Microbiology