Which one of the following blood vessels transports oxygenated blood from the lungs to the heart?
A) pulmonary artery
B) aorta
C) carotid artery
D) pulmonary vein
E) iliac vein
D
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Gram stain is used to distinguish between different
(a) bacteria. (b) protistans. (c) dinoflagellates. (d) all of the above.
What are plasmids?
A. Small, circular RNA molecules that contain many genes but that cannot be passed on to other bacteria B. Small, circular DNA molecules that contain just a few genes and that can be passed on to other bacteria C. Small, circular RNA molecules that contain just a few genes and that can be passed on to other bacteria D. Small, circular DNA molecules that contain just a few genes but that cannot be passed on to other bacteria
The "small" in the small intestine refers to its length
Indicate whether the statement is true or false.
In which coastal zone would you find a large number of crabs and mangrove trees along with moist soil?
A. benthic B. littoral C. intertidal D. neritic E. pelagic