B:2 it is measured by the crest of the wave or as I say the top of the wave
The supporting structure of the cell that is also involved in movement is most likely the cytoskeleton.
The Geologic time scale makes it easier to see the age of rock layers
These hydrogen atoms can come together in nuclear processes called fusion, which is the process that powers the sun, and through fusion, heavier atoms such as carbon and nitrogen are produced. These in turn undergo fusion to make even heavier atoms, and it is such processes that created all the atoms in the earth.
The answer is A.
Twins form in one of two ways:
Identical twins occur when a single fertilized egg splits into two.
Fraternal twins occur when two, separate eggs are fertilized by two, separate sperm.
