Which of the following is a true statement about diffusion?

a.
diffusion is only important for animal cells.

b.
diffusion requires energy input from the cell.

c.
only water can diffuse across a cell membrane.

d.
molecules move from areas of high concentration to areas of low concentration.

Ineed the definitions of all of these words nasap i will give 1o points to whoever awnsers

Amutagen is 1: a living thing that has undergone a mutation. 2: an agent that causes a mutation in dna. 3: a mutation that has affected one gene. 4: a chemical that can poison living cells.

In fruit flies, gray bodies (g) are dominant over black bodies (g), and brown pigments (n) are dominant over yellow pigments (n). each individual possesses two alleles for each trait. if a fly that is homozygous dominant for both traits is crossed with a fly that is homozygous recessive for both traits, what is the predicted genotype of the offspring.