Answer:
20
Explanation:
Amino Acids can be arranged in different ways. The books say there are only 20 amino acids.
The reasons are:Pea plants were easy to grew and they developed quick.It has a short life expectancy, which is about 3-4 months, so it can indicate prompt outcomes after the experiment. It is a bisexual plant however sexual reproduction can be effortlessly conveyed out, here it is additionally simple to locate an unadulterated line. It has 7 sets of differentiating characters.
The study of the lives of early human communities through the examination of their physical remains. Objects made by humans that are unearthed by archaeologists. ... The study of the earth, especially it's rock forms.
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