A biome is
A) the thin layer surrounding the Earth that supports all life.
B) all the populations of different species living and interacting within an ecosystem.
C) a broad-scale region dominated by similar types of ecosystems.
D) an area of land or water composed of a patchwork of communities and ecosystems.
C
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Increasing the flow of Na+ ions into a neuron at rest (-70 mV initially) would trigger
A. hyperpolarization. B. depolarization. C. repolarization. D. active transport. E. None of the choices are correct.
According to the graph in Figure 9-2, chlorophyll absorbs light most strongly in the:
a. red and blue wavelengths.
b. blue and green wavelengths.
c. green and yellow wavelengths.
d. UV and red wavelengths.
e. UV and infrared wavelengths
A fruit develops from the ovary wall
____________________ Indicate whether the statement is true or false.
Which is a general equation that summarizes the light-dependent reactions?
A. excited electrons + H2O + ADP + NADP+ ® ATP + NADPH + O2 B. ATP + NADPH + ribulose + CO2 ® ADP + NADP+ + complex organic molecule + ribulose C. CO2 + ATP + NADH + 5-ribulose ® glyceraldehyde-3-phosphate + NADP+ + ADP + P D. SUN + 6CO2 ® 6H2O + C6H12O6 + 6O2