The average life span of a red blood cell is approximately
A. 15 days.
B. 30 days.
C. 60 days.
D. 120 days.
E. 200 days.
Answer: D. 120 days.
Biology & Microbiology
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The complete genetic composition of an organism is called its.
A. proteome. B. genome. C. transcriptosome. D. phenotype. E. None of these choices are correct.
Biology & Microbiology
Science is based on
a. faith. b. authority. c. evidence. d. force. e. opinion.
Biology & Microbiology
Four of the following are gorilla features. Which one is the exception?
a. spinal cord attached at rear of skull b. C-shaped spine c. legs longer than arms d. flat foot e. opposable big toe
Biology & Microbiology
Provide at least two types of evidence that support the hypothesis of endosymbiosis. What will be an ideal response?
Biology & Microbiology