For the molecule that can freely move across the membrane, is diffusive equilibrium ever achieved?
a. Yes
b. No
a
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A bacterium undergoes four rounds of replication. How many cells would result, and how many of those cells would
still have part of an original DNA strand from the starting bacterium?
What will be an ideal response?Some bones have __________ that makes blood
cells. Fill in the blank(s) with the appropriate word(s).
Which of the following is not part of blood plasma?
A. metabolites and wastes B. proteins C. salts and ions D. hemoglobin
Any of these events may occur in diseases transmitted by vectors except ________.
A) In biological transmission, a vector transmits pathogens by defecating while taking a blood meal. B) In mechanical transmission, insects contact feces containing pathogenic bacteria and transfer it to food. C) In biological transmission, vectors can spread pathogens by vomiting. D) In biological transmission, pathogens multiply in the vector, which can transmit the pathogens by injecting saliva directly into the host. E) In biological transmission, the vector multiplies in the human host.