An example of mitosis at work is a plant root
elongating.
absorbing.
pointing down.
breaking.

Elongating

Explanation:

Plants grow by undergoing cell division, specifically, mitosis; a process whereby identical daughter cells are produced from a parent cell. Mitosis is the process which organisms employ for growth and repair.

As the cells divide, they multiply in their number, which induces elongation in that region that the division is occurring. This is a unique characteristics of root tips or apices.

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.