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

Biology & Microbiology

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The ER is contiguous with the nuclear envelope

a. true b. false

Biology & Microbiology

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).

Biology & Microbiology

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

Biology & Microbiology

A disease that is present in unusually high numbers throughout the world is called a(n)

A) endemic. B) epidemic. C) sporadic. D) pandemic.

Biology & Microbiology