FreeMCATPrep Logo

Support us and cryptocurrency!
Try a browser that's faster, safer, ad-free, and earns you cryptocurrency for using it! W3Schools

More Than 475 Free MCAT Questions with Detailed Answers!

Click HERE for your Random Question from our MCAT Question A Day Archive

MCAT Question A Day - 4/23/14 - Answer!

A variety of organs with similar functions among the vertebrates are thin, moist, highly vascular, and cover a relatively large surface area. These are necessary characteristics for an efficient

A.  heart.
B.  blood-brain barrier.
C.  neuromuscular interface.
D.  respiratory membrane.

The correct answer is (D). Basic knowledge about vertebrate biology is helpful. The characteristics described are shared by structures including gills, lungs, and even the skin of frogs (which can serve as an extra respiratory organ underwater).

Want more questions? - Click here to check out our MCAT Question A Day archive