Carbon dioxide concentrations fluctuate in predictable seasonal patterns on the surface of the planet largely as a result of
A) the influence of vegetation patterns in tropical systems.
B) weathering of rock surfaces following seasonal rain events.
C) vegetation growth and flux patterns in aquatic systems.
D) large-scale patterns of terrestrial plant uptake and dormancy.
D
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Put the following events of transcription in chronological order. 1. Sigma binds to the promoter region. 2. The double helix of DNA is unwound, breaking hydrogen bonds between complementary strands. 3. Sigma binds to RNA polymerase. 4. Sigma is released
Put the following events of transcription in chronological order. 1. Sigma binds to the promoter region. 2. The double helix of DNA is unwound, breaking hydrogen bonds between complementary strands. 3. Sigma binds to RNA polymerase. 4. Sigma is released. 5. Transcription begins. A) 2, 3, 4, 5, 1 B) 2, 3, 1, 4, 5 C) 3, 1, 2, 5, 4 D) 3, 2, 1, 4, 5
Mumps is caused by a ________.
A. adenovirus B. paramyxovirus C. morbillis virus D. synctial virus
Measurement of relative water content (RWC) can be used to predict a:
A. plant's ability to recover from cell collapsing B. wilted condition C. need for fertilizers D. cold shock E. salt tolerance
The production of ATP via the electron transport system, in either eukaryotes or prokaryotes, requires the use of a membrane
Indicate whether this statement is true or false.