CO2 enters and O2 escapes from a leaf via
A) stomata.
B) thylakoids.
C) grana.
D) stroma.
Answer: A
Biology & Microbiology
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The test tubes in the photograph contain Benedict’s solution and two unknown substances that have been heated. What do the results indicate for each substance?
What will be an ideal response?
Biology & Microbiology
Fossil fuels are primarily the result of
a. animal bones. b. animal wastes. c. decaying plants. d. worn-away rocks
Biology & Microbiology
The driving force for the movement of materials in the phloem of plants it
A. gravity B. a difference in osmotic potential between the source and the sink C. root pressure D. transpiration of water through the stomates E. adhesion of water to vessel elements
Biology & Microbiology
Zinc (Zn) is considered a macronutrient.
Answer the following statement true (T) or false (F)
Biology & Microbiology