How does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? the value of q is negative the value of q is positive the value of q remains constant the value of q decreases the value of q equals zero

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity