The largest single part of the shark's nervous system is the brain. Sharks are one of the smartest organisms that thrive in the deep sea. They have specially evolved brains that are capable of hunting and communicating with other sharks. Their keen sense of understanding helps them understand information presented to them and then later on converting this into information that they can use in the future.
Transposable elements and short tandem repeats are different because short tandem repeats make up only a small percentage of a given genome while transposable elements often make up larger parts of a genome. So the correct option is C.
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What are transposable elements? </h3>
Transposable elements or transposons are a class of genetic elements. They can “jump” from one location to another, in a genome.
Even though they are called “jumping genes,” they have an integrated site in a genome and are maintained there. Also, most of them are eventually inactivated and can not move any longer.
Whereas Short tandem repeats or STRs are short repeats of DNA. They are also known as microsatellites or simple sequence repeats. They have a repetitive unit of 1-6 bp and form a series of 100 nucleotide lengths.
Therefore the correct option C.
Read more about transposons, here
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The answer is D. the curculitory system transports hormons.
