A physician specializes in surgery involving the following group of organs: mouth, esophagus, stomach and intestines. Overall, this physician is specialized at which level of organization?
(a). cell
(b). tissue
(c). organ
(d). organ system
(e). organism
(d). organ system
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Analysis of the genome of Mycobacterium tuberculosis has revealed all the following EXCEPT
A. it has 99.5% homology with the genome of M. bovis. B. it is significantly larger than the genome of M. leprae. C. it is more closely related to M. leprae than to M. bovis.
Based on modern understanding of physiology, DNA sequences, and the fossil record, which of the following types of animals is most closely related to crocodiles?
a. snakes b. birds c. fleshy-finned fishes d. lizards e. mammals
The classic study of Washburn and Cannon was the perfect collaboration: Cannon had the ideas, and Washburn could swallow a(n) ___________.
What will be an ideal response?
Which of the following is a function of the nucleus?
A. stores DNA B. stores sugars C. builds proteins D. packages proteins