A diatom's ________ is a glassy cell wall
a. valve
b. heterokent
c. mastigonemes
d. frustule
d
Biology & Microbiology
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The subunit of clathrin is__________
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Which of the following is considered a major category of transmission of disease?
A) Vector transmission B) Contact transmission C) Vehicle transmission D) Contact, vehicle, and vector transmission
Biology & Microbiology
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.
Biology & Microbiology
Segments of DNA that increase the rate of transcription of certain genes are known as ________
A) introns B) short tandem repeats C) polymerases D) enhancers
Biology & Microbiology