The Kansas-Nebraska Act was controversial because it left the issue of whether slavery should be allowed to a popular vote, which brought about a series of violent confrontations called bleeding Kansas.
Answer: B. Authorized Congress to implement a graduate income tax
Explanation: The Sixteenth Amendment (Amendment XVI) to the United States Constitution allows Congress to impose an income tax from any source without alotting it among the states on the basis of population.
Answer:
competitive exclusion.
Explanation:
When species from the same biological community explore very similar ecological niches, competition among them for less available resources in the environment is instituted. It is common, for example, that plant species whose roots use the same portion of the soil compete for water, minerals and other resources.
Knowing this, Russian biologist Georgyi Frantsevich Gause formulated the Gause principle, or competitive exclusion principle, the theory that ecological niches are unique to each species, and for two or more of them to coexist in the same habitat, it is necessary that their niches have different and sufficient characteristics.
Gause proposed this theory based on several observations that led him to conclude that if two or more species explore exactly the same ecological niche, the competition established between them is so sharp that coexistence becomes impossible. This can cause a loss in species diversity, and that is exactly what Robert Paine observed in his studies.
Comparative advantage refers to the ability of a party to produce a particular good or service at a lower opportunity cost than another. Even if one country has an absolute advantage in producing all goods, different countries could still have different comparative advantages
Answer:
If you are in the 10th grade of the Indian education system, that'll mean that you are about 15 years old. In India, children of about 14 - 15 years of age usually enter 10th grade. In UK, this will be known as the Sophomore year / Year 11 → kids of age 15 - 16 years.
Hope it helps ⚜
