After collecting specimens from many areas of the world, Darwin noted the similarities in them. He discovered that new kinds of species could gradually grow into new ones over years.
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Answer:
b. the uses an area of land can be put to
<span>A group of cells that function together to perform a special activity is known as a tissue. Epithelial tissues are the tissues that lines inside of hollow organs. </span><span> Epithelial tissues covers body surfaces; lines the body cavities and hollow organs.</span>
Valine is a hydrophobic amino acid used for biosynthesis of proteins. It is essential in humans, meaning the body cannot synthesize it and it must be obtained from the diet.
Glutamic is a hydrophilic amino acid used by almost all living beings in the biosynthesis of proteins. It is non-essential in humans and the body can synthesize it.
