<span>A ,, food chain'' includes all the ways an organism lives and interacts with its environment.</span>
Chromatin
is composed of a DNA and a protein. The DNA is a double helix in the cell
nucleus packaged by histones, a special type of protein. Together they form the
chromatin with a basic structural unit called nucleosome. The chromatin's functions are:
a. to
package DNA into smaller volumes to fit in the cell.
b. to
allow mitosis by reinforcing the DNA macromolecule
c. to
prevent damaging of the DNA
<span>d.to
control gene expression and DNA replication</span>
A cell wall is like a wall of a room: it marks the "inside" and "outside"; protecting what is inside of the wall: the organelles of the cell. It is made of a little more durable and strong material than the intracellular fluid, but it's also quite flexible.
Many genes make up one chromosome. 46 chromosomes make 23 chromosome pairs. There are 23 pairs of chromosomes inside of a nucleus of a cell. Many skin cells make up skin.
For the answer to the question above, I think the answer is that <span><u><em>"Ascorbic acid is an antioxidant that prevents discoloration when the apples are cut and exposed to oxygen</em></u></span>"
I hope my answer helped you. Have a nice day!