The answer to this question would be: vitamin
Some bacteria can produce vitamin K2 in the intestine. Other bacteria also able to change vitamin K1 into vitamin K2. But the amount produced is not much, so human still need to fulfill it from the diet. Vitamin K has a role in calcium regulation and in blood clotting pathway.
I believe it's called a sex-linked trait, if I'm remembering correctly. This is because men do not have an X chromosome, therefore it would be linked to females.
Answer:
Sex Cell
Explanation:
A cell whose nucleus unites with that of a cell of the opposite sex to form a new organism. A reproductive cell contains only a single set of chromosomes. Animal egg and sperm cells, the nuclei in grains of pollen, and egg cells in plant ovules are all reproductive cells. Also called gamete, sex cell.
Kinda weird. But I have no feelings over it :)
Answer:
The correct answer is option B) "the fossil record".
Explanation:
The French anatomist and paleontologist Georges Cuvier was the leader of catastrophism, a theory that states that the Earth was shaped by a series of devastating natural events. Georges Cuvier proposed catastrophism's theory as an attempt to explain the existence of the fossil record. Cuvier speculated that large extinction events followed a certain pattern and he attributed these pattern to catastrophic events.