Answer:
4) biological preparedness
Explanation:
Biological preparedness is a phenomenon that humans and animals have developed over time as a survival mechanism. It explains the tendency of humans and animals to form associations between dangers and some stimuli. In this case, humans tend to associate snakes with danger than flowers to danger. This tendency of humans to associate snakes with danger has made humans, according to evolutionary perspective, to fear and avoid snakes. And so, became a trait for adaptation for humans’ survival.
Answer:
Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.
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