Hm I’m confused, if you mean what are they weighting, it’s they :)
The chemical that effects blood pressure for both the short and long term is Angiotensin II
The answer you are looking for is A. If you need me to show you how I got the answer let me know. :)
Answer:
Chromosomes are structures within cells that contain a person's genes.
Explanation:
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.