Why is the movement of blood in veins sometimes described as "milking a vein"?
What will be an ideal response?
When the contractions of skeletal muscles in conjunction with valve action pushes in on the walls of
veins, the blood is forced upward. This action is somewhat similar to squeezing the teat on a cow to
express the milk.
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Which of the following media provides the factors necessary for the growth of Haemophilus spp.?
a. 5% sheep blood agar b. Brain-heart infusion agar c. Chocolate agar d. Nutrient agar
_____ is a cancer of the bone marrow.
Fill in the blank(s) with the appropriate word(s).
The eating disorder characterized by consuming large quantities of food and then vomiting is called ________ nervosa
Fill in the blank(s) with correct word
What is an R plasmid?
A) They are a plasmid that can exist in the chromosome or outside the chromosome. B) It is an F factor that has picked up part of a bacterial genome. C) They carry a gene for resistance to an environmental attribute, such as heavy metals, and genes for the transfer of the plasmid. D) They function in bacterial recombination. E) They are the plasmids that carry the F factor.