The seasons are caused by the tilt of the Earth's rotational axis. The answer is A
"The <span>amino acid acts as a corepressor" is the statement among the choices given in the question that is true. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your great help.
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The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves.
Double fertilization results in the formation of one diploid embryo and a triploid endosperm. Double fertilization is characterized by the formation of two embryos; the embryo proper which is diploid and the fusion product of the central cell with one male gamete which is triploid. This secondary triploid zygote develops into the endosperm.