Which substance enters the Krebs cycle?
a. PGAL
b. carbon dioxide
c. oxygen
d. NADH
e. acetyl-CoA
E
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Epidermal cells secrete a translucent, waxy ____ to slow water loss
a. mesophyll
b. cuticle
c. pectin layer
d. lignin layer
e. trichome
Which of the following groups has been planted extensively along U.S. streets because of their resistance to pollution?
A) Bryophytes B) Liverworts C) Cycads D) Ginkgos E) Conifers
For the following questions, choose the letter from the list below that best matches the description (please note the answer should be a single uppercase letter):A. desertB. savannaC. taigaD. temperate grasslandE. tropical rain forestSpruce, fir; moose; deep snow, brief summer; vast sameness; marshes, lakes, and ponds.
Fill in the blank(s) with the appropriate word(s).
Only ______ cells can go through meiosis
Fill in the blank(s) with the appropriate word(s).