Coacervates can
A. absorb chemicals from the environment.
B. separate their internal contents from their surroundings.
C. be synthesized in the lab.
D. All of the above are correct.
D. All of the above are correct.
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Which of the following statements best describes the term synapomorphy?
A) a trait that is shared by more than one monophyletic group B) a trait common in a single monophyletic group, but not generally found outside of that group C) the state of having several traits in common with different monophyletic groups D) a trait that evolved in several different monophyletic groups simultaneously
How many of the following are characteristics of at least some members of the phylum Cnidaria?
1. a gastrovascular cavity 2. a polyp stage 3. a medusa stage 4. cnidocytes 5. a pseudocoelom A) 1 B) 2 and 3 C) 3, 4 and 5 D) 1, 2, 3, and 4 E) 1 and 2
What is the minimum concentration of sodium chloride that an extreme halophile requires for growth?
A) 2 M B) 4 M C) 6 M D) 10 M
Explain how transcriptional control by the NrpR protein of the archaeon Methanococcus maripaludis is similar to transcriptional control in bacteria. It is known that 2-oxoglutarate (2OG) is used by cells as an indicator of nitrogen deficiency
Based on what you know about effector molecules in bacterial operons, how would 2OG behave in M. maripaludis (as an inducer, a corepressor, etc.) and what effect would this molecule have on NrpR binding?