The lymphatic system drains into the circulatory system near the a.) cecum b.) j

Question

The lymphatic system drains into the circulatory system near the
a.) cecum
b.) junction of the Aorta and the left ventricle
c.) duodenum
d.) carotid artery
e.) junction of the vena cave with the right atrium.


Lymph nodes act as filters that remove
a.) ammonia from the blood
b.) debris from the body fluids
c.) indigestible material from the small intestine
d.) carbonic acid from the blood
e.) bile from the gall bladder


______________ are responsible for blood clotting.
a.) red blood cells
b.) white blood cells
c.) platelets
d.) forklets
e.) spoonlets


In the kidneys, the term "reabsorption" refers to substances going into the
a.) tubules
b.) collecting duct
c.) blood
d.) ureters
e.) None of the above


Animals who increase their body temperatures internally, for example by shivering, are properly known as
a.) endotherms
b.) ectotherms
c.) warm-blooded
d.) cold-blooded


Eliminating nitrogenous wastes in which form requires the least water but the highest energy expenditure?
a.) urea
b.) uric acid
c.) ammonia

Explanation / Answer

1. (e) junction of the vena cava with the right atrium 2. (b) debris from the body fluids 3. (c) platelets 4. (c) blood 5. (a) endotherms 6. (b) uric acid ammonia requires lots of water, which is why bony fish use this mechanism; birds, reptiles and frogs use uric acid; mammals and sharks use the urea mechanism.

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