What components makes up the backbone of dna?
a
adenine & guanine
b
cytosine & thymine
c
phosphate & sugar
d
nitrogen base & sugar

List five ways we are indebted to phytoplankton

Give examples of selective advantage of organism’s body part/organ

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.