Question

Given below are some passages. Make notes on these passages and then write summaries
1. One of the most unusual aspects of the shark is its teeth. They can grow as long
as 5 centimetres, and they are razor sharp. Unlike humans, who have two sets
of teeth in their lifetime, some sharks can have as many as five or six sets. It is
rare for a shark to have fewer than four sets. As the shark's teeth are worn out.
they fall out and are replaced by the next row. Some sharks can wear out a full
set of teeth in less than six months. In a lifetime some sharks can grow and lose
between 10,000 and 30,000 teeth.


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Answer 1

Answer:

The renal cortex, renal medulla, and renal pelvis are the three main internal regions found in a kidney. Nephrons, masses of tiny tubules, are largely located in the medulla and receive fluid from the blood vessels in the renal cortex.