Why are lymph nodes considered secondary lymphoid tissue? Lymph nodes produce white blood cells, but they do not use white blood cells to fight infection.
Lymph nodes use white blood cells to fight infection, but they do not produce white blood cells.
Lymph nodes are the second line of defense against infection.
Lymph nodes are produced by the primary lymphoid tissues.

YER

Explanation:

yes

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.

answer 2 is the right one. jim should measure his snack to make sure he is using the right serving size.