The presence of a nuclear membrane is characteristic of ____
a. Archaea only
b. Bacteria only
c. both Archaea and Bacteria
d. neither Archaea nor Bacteria
e. Archaea, Bacteria and Eukarya
ANSWER: d
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An experiment was done to determine the decimal reduction time of a specific population of organisms at 80oC. The data is indicated by an arrow on the graph. Which labeled line represents the likely results if the experiment was repeated at the same temperature, but starting with a larger number of organisms?
A. Line D B. Line C C. Line A D. Line B
With few exceptions, organic compounds are those that contain
a. nitrogen. b. hydrogen. c. carbon. d. oxygen. e. all of the above.
The RNA molecule is made up of how many
strands? a. 1 b. 2 c. 3 d. 6 e. 12
What subphylum do spiders belong to?
A. Arachnida B. Arthropoda C. Chelicerata D. Crustacea E. Malacostraca