Answer:
b upper middle class
Explanation:
because of term high income
Stereotypes basically determine your social ranking and therefore they are hard to break because it is difficult to escape the norms of society, which are so sadly helping only the ones who are already at the top.
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Answer:
any external change in their environment that causes one phenotype to have an advantage over the other
Explanation:
There are a few possible answers here. A good example might be if the grass they live in turns brown after a long drought, leaving the green grasshoppers more visible to predators than brown ones.
Jaguar, large birds, snakes and humans
B) a white dwarf is stronger than a supergiant, and if it closer to the earth a star has more magnitude so it is B