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

Biology & Microbiology

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Gram stain is used to distinguish between different

(a) bacteria. (b) protistans. (c) dinoflagellates. (d) all of the above.

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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

Biology & Microbiology

The "small" in the small intestine refers to its length

Indicate whether the statement is true or false.

Biology & Microbiology

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

Biology & Microbiology