The middle layer of the leaf is composed of the
a. lower epidermis.
b. mesophyll.
c. upper epidermis.
d. waxy layer
B
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Which of the following is the monomer used to build glycogen and starch?
a. galactose. b. glucose. c. furanose. d. fructose. e. sucrose.
Which of the following characteristics make(s) an organism well adapted to colonizing a
disturbed area?
a. Its seeds germinate quickly. b. It tolerates a wide range of environmental conditions and resources. c. It has a broad ecological niche. d. all of these
You can receive public information about your physician from ________
A) the U.S. Environmental Protection Agency B) the U.S. Food and Drug Administration C) the Federation of State Medical Boards D) the Centers for Disease Control and Prevention
If an Arabidopsis plant does not express homeotic genes during flower development
A. the plant will only develop to the heart stage. B. the plant will not develop cotyledons. C. the plant will develop leaves instead of flowers. D. the plant will develop flowers instead of leaves. E. the plant will die.