When neurons are not producing electrical signals, there is still a voltage difference across their membranes. What is this voltage called?  

A.  channel-gate bias
B.  electrolyte voltage
C.  equilibrium potential
D.  resting potential
E.  ion current


D.  resting potential

Biology & Microbiology

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Let R = red pigment and r = no pigment. In carnations, RR offspring make a lot of red pigment, rr offspring make no pigment and Rr offspring make a small amount of red pigment, thus appearing pink. Pink carnations are therefore an example of  

A.  codominance. B.  incomplete dominance. C.  epistasis. D.  pleiotropy.

Biology & Microbiology

Which of the following structures is NOT an example of an organ?

a. cartilage b. blood vessels c. the brain d. the heart e. the stomach

Biology & Microbiology

DNA is replicated by a process called ____________________

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

It is not unusual for a phylogeny reconstruction to result in several equally robust phylogenetic trees that differ in their branching patterns. How can this be the case if evolution only took one true pathway?

What will be an ideal response?

Biology & Microbiology