11 The diagram shows how specialized body cells can develop.
Totipotent
Pluripotent
Stem Cells
Stem Cells
Specialized
Stem Cells
Can develop into
any type of body
cell
Can develop into
almost any body
cell, including other
pluripotent cells
Can develop into
specific cell types,
such as nerve or
blood cells
Specialized
Cells
A
Which of the following best explains why cells that contain the same genetic material do not develop into the
same types of cells?
Because internal or external stimuli can trigger the activation of specific genes in the DNA of cells
B Because random mutations can occur in the DNA of cells during early embryonic development
Because messenger RNA is converted to transfer RNA when cell differentiation begins
D Because chemical signals that are released during the cell cycle can result in the linking of similar genes
С

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/XzW3SUN

a lot of people sadly don't know the best way to learn is cheating off of your friends or this amazing thing called google

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.