The answer is diffusion.
Facilitated diffusion is a process by which molecules are transported across the plasma membrane with the help of membrane proteins.
The answer would be B. chromosome 21
Answer:
The waste products are Carbon Dioxide and Water.
Explanation:

75% Blue
25% Other
If both are Heterozygous, that would mean that they're both Bb.
That would mean that it'll be Bb, Bb.
B b
B║ BB ║ Bb ║
b║ Bb ║ bb ║
ANSWER:
it is considered PHYSICAL HARM.
~batmans wife