There are many functional groups present in organic molecules. The ability to identify them relies on practice and knowing the characteristics and purpose of each functional group. Examples of functional groups are: hydroxyl, carbonyl, carboxyl, amino, phosphate, sulfhydryl. I encourage you to research on each of the different groups to understand their purpose, characteristics, and structure as it is the best way to learn to distinguish between them.
The correct answer is an Arachnid.
<u>arteries carry oxygenated blood and veins carry de-oxygenated blood.</u>
Sealing terrarium will lead to water cycle, because water can not escape out. so vapours formed during day time will convert into water droplets at night.
<span>The black bear would become extinct.
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