Dylan has been going through some physical changes since he started high school. In the past 3 months, he’s already grown 5 inches taller. He’s been growing so fast the joints in his bones started hurting. His voice has been cracking and it’s recently become very deep, which also surprised him. He visits the doctor to talk about this. The doctor says the voice change is a normal part of going through puberty, but there might be a hormonal imbalance to cause the rapid height change. Questions
Which hormone is causing Dylan to grow so fast?

Does Dylan have too much of the hormone, or too little? Explain your reasoning.

the correct answer is d

answer; ///segregation;

oxygen is the first element in group 16 (via) of the periodic table. the periodic table is a chart that shows how chemical elements are related to each other. the elements in group 16 are said to belong to the chalcogen family. other elements in this group include  sulfur, selenium, tellurium,  and  polonium.  the name chalcogen comes from the greek word  chalkos,  meaning "ore." the first two members of the family, oxygen and sulfur, are found in most ores.

oxygen is by far the most abundant element in the earth's crust. nearly half of all the atoms in the earth are oxygen atoms. oxygen also makes up about one-fifth of the earth's atmosphere. nearly 90 percent of the weight of the oceans is due to oxygen. in addition, oxygen is thought to be the third most abundant element in the universe and in the solar system.