Features that contributed to success on land include a
__________ and __________ that minimize water
loss. Fill in the blank(s) with the appropriate word(s).
Answer: cuticle; stomata
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In the Gram-staining procedure, the decolorizer is
A. crystal violet. B. ethanol or acetone. C. safranin. D. iodine.
Guard cells
a. surround the stoma. b. control the flow of gases between the interior of a leaf and the atmosphere. c. become turgid when it becomes light if environmental conditions are not too hot or too dry. d. may absorb water from surrounding epidermal cells. e. do all of these.
The role of maternal effect genes in Drosophila is to:
a. code for the production of yolk proteins. b. prepare the female fly for reproduction. c. control the early stages of Drosophila development. d. control the development of the pupa. e. control the shape and size of the eggs produced.
Angiosperms with wind-dispersed pollen include
A) grasses. B) pine trees. C) ferns. D) roses. E) mosses.