Answer:
Option D, appear in the urine
Explanation:
It is mentioned in the question that Tm for a particular amino acid is 120 mg/100 ml , but the concentration of amino acid in blood is 230 mg/100 ml. Thus, there is an excess of amino acid in blood. The excess amino acid is drained into kidney during blood purification which ultimately appear in the urine.
Thus, option D is correct
Answer:the calciferous and siliceous spicules
Explanation:
The correct option is PHYLUM.
Scientists arranged living organisms into groups on the basis of the traits which they share with one another. The lowest rank in the groups is the specie while the kingdom is the highest rank. The ranks are arranged as follow:
Specie < Genus < Family < Order < Class < phylum < Kingdom.
Thus, the phylum is a combination of many classes.
