<span>factor is a variable
I would say its false, you can test 1 factor at a time</span>
Answer:
D. Commutes are longer than in a city bc suburbs are located far from business districts
Explanation:
more driving means more pollution.
The lymph vessel flows from the tissue to the lymph nodes, flow to the largest lymphatic vessel in the thorax called thoracic duct, then drain to the subclavian vein.
The lymphatic vessel is a thin tubular organ made of the endothelial cell. It has a valve like the vein to prevent backflow of lymph. Lymphatic vessel delivers the lymph through the body and has a role in the immune system.
