Where do the electrons that are excited by the energy in sunlight come from?
A. NADPH
B. Water
C. Sunlight
D. Sugar
Answer: B
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Why do you suppose that a chloroplast kept in darkness for some time prior to being fixed for electron microscopy does not contain starch?
What will be an ideal response?
Leaf folding by the sensitive plant is due to changes in the water content of cells within structures called __________. This type of response is called
A. Aerenchyma; thigmotropism. B. Pulvini; gravitropism. C. Pulvini; thigmotropism. D. Cryptochromes; gravitropism.
When fossils were first discovered, some scientists suggested they were the remains of extinct organisms. This idea
conflicted with the views of natural theologians who____.
a. believed that body plans were perfect b. did not believe in the stratification of rocks c. did not believe extinctions ever occurred d. believed fossils in the uppermost layers were those of living organisms e. believedfossils in each different rock layer were similar to one another
The identification schema within Bergey's Manual of Determinative Bacteriology are based on
morphological and physiological characteristics. DNA microarray information. 16s RNA sequences. reactions with specific antibodies. morphologic characteristics and 16s RNA sequences.