Which of the following processes are typically associated with the long-term carbon cycle? Select all that apply
A. respiration
B. plate tectonics
C. photosynthesis
D. volcanic eruptions
B,D
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Which are essentially equivalent treatments?
A. Dry 200?C heat for 1.5 hours; wet 121?C heat for 15 minutes B. Dry 160?C heat for 1.0 hour; wet 200?C heat for 30 minutes C. Dry 121?C heat for 1.5 hours; wet 200?C heat for 15 minutes D. Dry 100?C heat for 2.0 hours; wet 100?C heat for 30 minutes
The ____ horizon extends to the underlying bedrock, and consists of mineral particles and rock fragments but
generally no organic material?
a. A b. B
c. C d. D e. O
One key reason why viruses are not considered living organisms is
viruses do not contain genetic information. viruses do not reproduce on their own. viruses are all smaller than the smallest known cells. viruses do not contain a nucleus. viruses can be frozen and still survive
Although SSU rRNA gene sequencing has been fruitful in distinguishing between domains, recent phylogenetic approaches of sequencing ________ genes have revealed Eukarya-specific evolutionary histories
a. ATPase b. RNA polymerase c. tubulins d. ATPase, RNA polymerase, and tubulins