Which of the following does not take place during the first of the two phases of photosynthesis?
a. Light energy is absorbed by electrons in the chlorophyll.
b. Water is split.
c. ATP and electron carriers are formed.
d. Carbon dioxide is fixed.
e. Oxygen is released.
D
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The tube feet of sea stars are used primarily for ____
a. excretion of excess water b. locomotion c. reproduction d. circulation e. sensation
A characteristic of a temperate deciduous forest biome that differs from a tropical rainforest biome is that in a
deciduous forest, ____.
a. there is greater biodiversity b. there are more conifers c. there are year-round warm temperatures d. the trees shed their leaves e. it is very similar to taiga
After forest harvest in an old-growth forest of the Oregon Cascades, an ecologist noted that the species that were present after 5 years differed from the species that were present 25 years later, and these differed from the species that were present
75 years later. What are the general characteristics of the species at each stage, and why does the community change over time?
The electron transport chain is based on the principle that redox couples with more positive reduction potentials will donate electrons to couples with more negative potentials.
Answer the following statement true (T) or false (F)