Despite the fact that the Black Death was widespread and deadly,

it seemed that some Europeans were immune to it.

it was not understood how it started or how it spread.

it did not affect most countries in western Europe.

it seemed that many doctors did not attempt to treat it.

it was not understood how it started or how it spread.

Explanation:

The Black death, otherwise known as Pestilence or Great Bubonic Plague amongst many other names, caused about 75 - 200 million deaths across Europe and Asia in the 14th century. At the time, doctors did not understand the cause or spread of Black death disease, so they relied heavily on treating the disease in an orthodox or traditional way.

Not until French biologist, Alexandre Yersin, discovered the cause and spread of the disease in the late 19th century, which he described as bacillus, named Yersina pestis.

And it is spread through air, or bite of infected flea and rats. It is mostly spread from human to another human, which is why it spreads quickly in the 14th century across Eurasia or Europe and Asia.

b.) it was not understood how it started or how it spread

Explanation:

just took the test on ed

where are the answer choices

answer: a parliamentary system is a system of democratic governance of a state where the executive derives its democratic legitimacy from its ability to command the confidence of the legislature, typically a parliament, and is also held accountable to that parliament. in a parliamentary system, the head of state is usually a person distinct from the head of government. this is in contrast to a presidential system, where the head of state often is also the head of government and, most importantly, the executive does not derive its democratic legitimacy from the legislature.

countries with parliamentary democracies may be constitutional monarchies, where a monarch is the head of state while the head of government is almost always a member of parliament (such as the united kingdom, denmark, sweden, and japan), or parliamentary republics, where a mostly ceremonial president is the head of state while the head of government is regularly from the legislature (such as ireland, germany, india, and italy). in a few parliamentary republics, such as botswana, south africa, and suriname, among some others, the head of government is also head of state, but is elected by and is answerable to parliament. in bicameral parliaments, the head of government is generally, though not always, a member of the lower house.

parliamentarianism is the dominant form of government in europe, with 32 of its 50 sovereign states being parliamentarian. it is also common in the caribbean, being the form of government of 10 of its 13 island states, and in oceania. elsewhere in the world, parliamentary countries are less common, but they are distributed through all continents, most often in former colonies of the british empire that subscribe to a particular brand of parliamentarianism known as the westminster system.

explanation: