n many cells, when ACh binds to the ACh receptor protein it opens a set of channels thatconduct Na and K equally well. It is thought that both species of ions move throughthe very same channels. Because the conductanceto both ions are equal, you canassume that permeabilities to Na and K are equal to each other and set them equal to 1in the Goldman equation. What will Vm be in the cells that respond to ACh if thechannels stay open long enough for the system to reach equilibrium

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

Apart of an ecosystem that can restrict the growth of a population is referred to as

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.