The main osmoregulatory and excretory organ in most vertebrates is the:a
skin.
b. gill.
c. metanephridium.
d. lung.
e. kidney.
E
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Bladder worms are found in
(a) proglottids in human feces. (b) proglottids in the human intestine. (c) improperly cooked pork. (d) none of the above.
What is the epidemiological significance of shingles?
A. It shows that, as a latent viral infection, there is always a possible reservoir available to reinfect new susceptible individuals. B. It shows that we must always be vigilant against this deadly and highly infectious secondary infection in elderly and immunocompromised individuals. C. It shows that, as a chronic viral infection, individuals infected are always infectious to others around them, even when they do not show outward symptoms. D. It shows that our fight for long-term eradication of varicella zoster virus will be a very long fight, depending on immunizing all newly born individuals until all the people who had ever had contracted the illness have died E. It shows that, as a latent viral infection, there is always a possible reservoir available to reinfect new susceptible individuals AND it shows that our fight for long-term eradication of varicella zoster virus will be a very long fight, depending on immunizing all newly born individuals until all the people who had ever contracted the illness have died.
Eating and digesting a candy bar for energy during a sports event is a good example of ____
a. catabolism b. anabolism c. converting kinetic energy into potential energy d. metabolism e. converting heat energy into chemical energy
Most plants would grow best in which of the following situations?
a. a soil with very small air spaces b. a soil with relatively large air spaces c. a soil with air spaces filled almost entirely with water d. a soil with various sizes of air spaces e. a soil with no air spaces