In a large population of sea stars, half of the individuals possess the red allele
and half possess the purple allele. those with the purple allele are better able
to hide from predators. therefore, more of them will survive and reproduce.
which of the following requirements for the hardy-weinberg equilibrium is not
being met?
o
a. the population must be infinitely large.
o
b. each allele must be equally beneficial.
o
c. no immigration can occur.
o
d. no mutation can occur.

B. Each allele must be equally beneficial.

Explanation:

There are five main requirements to achieve Hardy-Weinberg equilibrium:

The red-purple allele difference has to do with #5, no natural selection. This difference in alleles "Therefore, more of them will survive and reproduce" indicates natural selection, and hence evolution, may occur, which cannot happen in Hardy-Weinberg.

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.