If the equilibrium potential is close to the resting membrane potential, the net ionic movement across the membrane
will be very small.
Indicate whether the statement is true or false.
ANSWER: True
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Conservationists have identified 25 areas worldwide as hotspots. This means these areas
A. are currently being preserved. B. have serious pollution problems and are being targeted for cleanup. C. have high numbers of endemic species, and those numbers are increasing. D. have high numbers of endemic species, and those numbers are decreasing. E. have the highest numbers of invasive species worldwide.
Which of the following types of fungi are typically unicellular, lack heterokaryotic cells, and occasionally produce rhizoids?
A. basidiomycetes B. zygomycetes C. glomeromycetes D. ascomycetes E. chytrids
There is an autosomal gene that controls baldness, and
its expression is sex-influenced, so that the gene for baldness (B) is dominant in males but recessive in females. In females the allele B1 for nonbaldness is dominant over the gene for baldness. If a heterozygous nonbald woman marries a nonbald man, what will be the appearance of their children? Work out the possibilities for each sex. What will be an ideal response?
Which of the following is a correct pair based on their shared characteristics?
a. the universe and a closed system b. the universe and an open system c. an ocean and an open system d. an ocean and a closed system