Answer:
Photosynthesis is the process of converting light energy into chemical energy in the form of glucose, in small structures called chloroplasts. The glucose made in photosynthesis is then used during cellular respiration.
By following honeyguides (a species of bird), people are able to locate bee's nests to harvest honey. In fact, research now reveals that humans use special calls to solicit the help of honeyguides and that honeyguides actively recruit appropriate human partners. this relationship is a rare example of cooperation between humans and free living animals.
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A large sample size broadens the range of possible data and forms a better picture for analysis. It also shows that data was not a flaw, for example if he only used a few plants, people would think that those plants were not very accurate. But, a large sample makes it more reliable and trustworthy.