40
the diagram above shows some of the components of the lymphatic system. the lymph node contains a large collection of cells, labeled a, through which the lymph flows. what is the function of this cluster of cells?
a. to remove pathogens from the lymph
b. to recover protein from the lymph
c. to pump the lymph through the lymph node
d. to transport oxygen to other lymph node cells

Sadie and her mom were at a hardware store to purchase smoke detectors for their new home. sadie's mom was unsure how many units she should purchase. what is the general recommendation? a. one large one for the middle of the house b. every room in the house should have one c. kitchen, garage and laundry room- since those are where most fires happen d. every living area including the hallway by the bedrooms should have a smoke detector.