Dozens of different types of fats exist in nature; what groups these molecules together is that all _____.
A) contain stearic acid
B) can be found in the membranes of animal cells
C) contain oleic acid
D) are solid at room temperature
E) contain glycerol bonded to at least one fatty acid
Answer: E) contain glycerol bonded to at least one fatty acid
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The process of diffusion requires:
A. a concentration gradient. B. ATP energy. C. the random movement of molecules. D. transport proteins.
DDT is a(n)
a. blight that affects American chestnut trees. b. endangered plant species. c. pesticide. d. wildlife refuge area in Yellowstone National Park.
The two domains of prokaryotes are Bacteria and Fungi
__________________ Indicate whether the statement is true or false.
Gee's arm was cut during an industrial accident. The blood was pouring from the wound in spurts. Which type of vessel was severed?
A) artery B) vein C) capillary D) lymphatic vessel