Which structural feature is common in BOTH Planctomycetes and Verrucomicrobia but RARELY found in bacteria outside these two phyla?
A) intracellular compartmentalization
B) prosthecae appendages
C) sheathlike toga cell envelopes
D) tubulins
Answer: A
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Which of the following evidence most strongly supports the common origin of all life on Earth? All organisms _____
A) require energy B) use essentially the same genetic code C) reproduce D) show heritable variation E) evolve
The stroma of the land-plant chloroplast is evolutionarily derived from __________
A. the thylakoid membrane B. the plasma membrane of cyanobacteria C. the periplasm of cyanobacteria D. the cytoplasm of cyanobacteria E. the plasma membrane of a eukaryotic ancestor
Which of the following viruses maintains a latent state in nerve cells?
A. herpes virus. B. hepatitis A virus. C. Norwalk virus. D. rotavirus.
Immunosuppressive drugs
A. are only needed during the first week after transplantation. B. are only needed for the first year after transplantation. C. are needed indefinitely after transplantation. D. are needed for transplants between identical twins. E. are needed indefinitely after transplantation AND are needed for transplants between identical twins.