(Q).
Q: The duodenum, the jejunum, and the ileum are the main regions of which organ? Choices: - lungs - large intestine - heart - small intestine A:
(A).
small intestine

(Q).
Q: What is the process by which a liquid changes to a solid? Choices: - melting - vaporizing - boiling - freezing A:
(A).
freezing

(Q).
Q: In the nematic phase, only the long axes of the molecules are parallel, and the ends are staggered at random intervals. in the smectic phase, the long axes of the molecules are parallel, and the molecules are also arranged in planes. finally, in thecholesteric phase, the molecules are arranged in layers; each layer is rotated with respect to the ones above and below it to give it this? Choices: - layer structure - kinetic energy - symmetry - spiral structure A:
(A).
spiral structure