Which action is most similar to the way in which water is moved through the xylem sap of a plant?
A) a person drinking through a straw
B) a vaccine being ejected out of a syringe
C) water gushing up from a fountain
D) a dart being blown out the end of a blowgun
A
Biology & Microbiology
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Which of the following adds new nucleotides to a growing DNA chain?
a. DNA polymerase b. DNA helicase c. RNA primer d. primase e. RNA polymerase
Biology & Microbiology
What does the pharynx open into?
A) the esophagus B) the epiglottis C) the trachea D) the larynx
Biology & Microbiology
Which process is used to ensure that plates contain 30 to 300 colonies at the end of plate counting methods?
a) Turbidity b) Serial dilution c) Filtration d) Pour plates
Biology & Microbiology
If the father is color blind, what is the genotype for his daughter? (Using the letter B for the normal allele)
What will be an ideal response?
Biology & Microbiology