Which of the following is true?
A. Only eukaryotes have a membrane-bound nucleus
B. Only eukaryotes have ribosomes
C. Only bacteria have cell walls
D. Only bacteria and eukaryotes have a plasma membrane
Answer: A. Only eukaryotes have a membrane-bound nucleus
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Put the stages of infection in order starting with the first stage at the top:
a. Prodrome b. Convalescent period c. Incubation period d. Acute period
The FBI currently determines an individual's DNA profile using:a
DNA sequencing. b. mitochondrial DNA variations. c. RFLPs. d. DNA ligation. e. 13 STR markers
How does a longer alimentary canal create an advantage in processing plant material?
A. Increased time of digestion allows for more processing. B. More volume means more food can be consumed. C. It creates positive feedback for decreased enzymatic activity.
Some transport processes use transport proteins in the plasma membrane, but do not require ATP. This type of transport is known as _____.
a. facilitated diffusion b. active transport c. simple diffusion d. endocytosis e. exocytosis