Both humans and monkeys have this. A VERY long time ago Humans had very small "strings" of skin. This skin has evolved over time and now there is a bone left. Monkeys are technically un-evolved humans. Good thing they stuck around.
<span>no because organisms such as humans are omnivores they can eat both meat and plants and may act as 1st,2nd or 3rd level heterotroph.</span>
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