How does fat enter the blood circulation?
a. across the lining of the mouth
b. through the hepatic portal system
c. across the stomach lining
d. through an epithelial cell
e. across the large intestine lining
d
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The clinical microbiology laboratory can provide preliminary identification of microorganisms based on
A. growth or biochemical characteristics. B. immunologic techniques that detect microbial antigens. C. microscopic examination of specimens. D. All of the choices are correct.
Which organism possesses a three-chambered heart?
a. human b. amphibian c. arthropod d. bird e. fish
Based on these data, do scorpions seem well adapted to chasing down their prey over long distances?
a. Yes b. No
Over a span of two decades, scientists measured changes in the beak size of a population of Galápagos ground finches. This ________
A) provided evidence of natural selection in action B) is an example of artificial selection C) is an example of overproduction D) led Darwin to his theory of evolution through natural selection