Carbon dioxide (CO²) is taken in to start the Calvin Cycle.
Answer:
Wood is made up differently and it has less gravity. Wood also has air holes in it
I am between B and C but leaning more towards C.
If a boy exhibits a sex-linked trait that is carried on the X chromosomes, his mother carried at-least one allele for that trait.
The boy has a X chromosome inherited from his mother and he inherited Y chromosome from his father. So, his mother must carried at least one allele for that trait because he exhibits a sex linked trait that is carried on X chromosome.
MRNA can leave the nucleus while DNA can not