1. Variations
2. Extinction
3. Behavioral
4. Functional
5. Structural
Hi there.
I think the answer to your question is: nitrogen.
Nitrogen is found in proteins, but not carbs.
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The Linnaean system added more stories onto hierarchy the of complicatedness that Aristotle developed.
The Linnaean system of type of taxonomy was developed by Swedish naturalist named Carolus Linnaeus in the mid 1700. He created a way to organize and name species. He based his type on physical traits of organisms and uses binomial nomenclature to identify organisms. The seven main level of classification are kingdom, phylum, class, order, family, genus and species.
<h3>Why is the Linnaean system important?</h3>
The Linnaean system is critical because it led to the use of binomial nomenclature to recognize each species. Once the system was assumed, scientists could communicate without the use of deceiving common names. A human being became a partner of Homo sapiens, no matter what terminology a person spoke.
To learn more about Linnaean system, refer
brainly.com/question/9880750
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It is only active at a pH of around 2 because that is around the same pH as the gastric juices in the stomach which is where pepsin is used to break down proteins.
