Which of the following parts of a virus is/are not always present?
A. capsid
B. envelope
C. nucleic acid
D. capsomers
E. None of these choices are optional parts of a virus.
Answer: B
Biology & Microbiology
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Hemophilia is characterized by ____
a. defects in the mechanism of blood clotting b. an extremely low blood iron level c. jaundice of the eyes and skin d. muscular weakness and atrophy e. breathing difficulties
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Species interactions between members of a
community include __________, which benefits both species. Fill in the blank(s) with the appropriate word(s).
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Why is the term GMO a misnomer for transgenic organisms? What will be an ideal response?
Biology & Microbiology
Which of these organisms does not produce an enterotoxin?
A) Shigella spp. B) Clostridium botulinum C) Vibrio cholerae D) Staphylococcus aureus
Biology & Microbiology