Over time, the carbon isotope 14C decays into
a. 12C.
b. 14N.
c. 12N.
d. 13C.
e. 12B.
B
Biology & Microbiology
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The most prominent tissue in the stems of herbaceous plants is
a. epidermis. b. parenchyma. c. phloem. d. xylem.
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The image of an individual's complement of chromosomes arranged by size, length, shape, and centromere location is
called a(n) _____.
a. autotype b. genotype c. phenotype
d. karyotype e. double helix
Biology & Microbiology
Pinworm disease is caused by
a) Taenia solium. b) Echinococcus granulosus. c) Necator americanus. d) Enterobius vermicularis.
Biology & Microbiology
In a showy flower such as a magnolia or rose, the flower parts that play the main role in attracting the notice of animal pollinators are the
A) petals. B) sepals. C) fruits. D) stigmas.
Biology & Microbiology