Phospholipids are the main lipids in cell membrane. They consist of hydrophilic (water loving) head and a hyrophobic (water fearing) tail. Thye line themselves in 2 parallel layers (bilayer) The bilayer makes up the membrane
ATP is the main chemical vehicle for biochemical energy transfer within all the cell's domains
THE DEFINITION OF BIODIVERSITY:Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth. A common measure of this variety, called species richness, is the count of species in an area.
BEST ANSWER: Based of the def, I would go with answer A as it makes the most sense.
Answer:
From The School of Biomedical Sciences Wiki. Complementary base pairing is the phenomenon where in DNA guanine always hydrogen bonds to cytosine and adenine always binds to thymine. The bond between guanine and cytosine shares three hydrogen bonds compared to the A-T bond which always shares two hydrogen bonds.