Which element is considered the most versatile element in living organisms and why?

a. hydrogen, because it is a key component in organic molecules and provides most of the mass of human bodies

b. hydrogen, because it can be found in both organic and inorganic molecules

d. carbon, because it can bond with many elements to form complex molecules

d. carbon, because it provides strength to the important protein, keratin

What occupation did muhammad have before the first revelation

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

In 2001, records showed that local stocks of fish were down worldwide. yet, records of harvests indicated that fish were being taken at records rates. what was actually happening?