In the diagram of a root tip shown above, the item labeled "4" is the
a. quiescent center.
b. zone of cell division.
c. zone of elongation.
d. root cap.
e. zone of maturation.
A
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A disease that is present in unusually high numbers throughout the world is called a(n)
A) endemic. B) epidemic. C) sporadic. D) pandemic.
The ER is contiguous with the nuclear envelope
a. true b. false
Choose the letter of the best match from the following:A. birth control pillB. intrauterine deviceC. diaphragmD. foams and jelliesE. vasectomySurgical intervention.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a product of recombinant DNA technology?
A) rice that produces vitamin A B) bacteria that produce antibiotics C) yeast that produces alcohol D) bacteria that produce acetone E) microbes that digest crude oil