ABC Question 1
What is known as the net movement of any type of molecule from a region of higher concentration to a region of lower concentration?
exocytosis
B
diffusion
C
endocytosis
D
Osmosis

Twin boys have girlfriends one of the couples have a baby would the dna of the lil baby be the same as the couples dna bc the boys are identical twins

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

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.