In the mammalian digestive system, what is the primary site of nutrient absorption?
A. pharynx
B. stomach
C. small intestine
D. large intestine
E. pancreas
C. small intestine
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Diphtheria is caused by a member of which of the following genera?
A. Propionibacterium B. Mycobacterium C. Corynebacterium D. Nocardia
What are the primary cellular sites for the production of ATP?
a. endoplasmic reticulum b. ribosomes c. mitochondria d. chloroplasts and mitochondria e. ribosomes and Golgi bodies
If two giraffes were crossed, where one is heterozygous for albinism (a) and the other has a homozygous dominant genotype, what would be the expected genotypic and phenotypic ratios?
a) 2 AA: 2 Aa: 0 aa; all pigmented b) 1 AA: 2Aa: 1aa; 3 pigmented: 2 albino c) 2 AA: 2 Aa: 0 aa; 4 pigmented: 2 albino d) 2 AA: 0 Aa: 0 aa; all pigmented e) 0 AA: 0 Aa: 1 aa; all albino
Which of the following is an example of deductive reasoning?
A) Living objects are composed of cells. B) Atoms make up molecules, which make up cells, which make up tissues. C) If an object exhibits all the characteristics of life, it must be living. D) All objects on Earth will fall down when dropped, and none will "fall up."