A "stimulus" is basically an event that happens in the outside environment that triggers a response. So, when you touched the dog's ear, that's a stimulus. The twitch is a response! So, A is correct. But just to be sure, let's look at the rest.
Artificial selection (B) is basically breeding: when humans breed organisms in order to obtain desired traits, like breeding dog species--this is not what our example is talking about.
Natural selection (C) is a similar process. When an organism mutates, but it actually helps it survive, it is more likely than the others to survive long enough to have babies. These babies are likely to have the helpful mutation, and so are their babies, and theirs, until a good portion of them have the mutation. This is NOT the example above!
And D, reproduction--well, let's just say it would involve a female dog and lots of babies, but that's not related to our example, so that isn't right either. The answer is A: a response to a stimulus.
Answer: A
Answer:
1517: Luther takes the pope to task. ...
1519: Reformist zeal sweeps the south. ...
1520: Rome flexes its muscles. ...
1521: Luther stands firm at Worms. ...
1525: Rebels are butchered in their thousands. ...
1530: Protestants fight among themselves. ...
1536: Calvin strikes a chord with reformers.
Explanation:
Answer: 1.(D), 2.(D)
Explanation:
Natural rate of unemployment is referred to as the ratio, the state of full employment, in proportion with workforce that are still unemployed. Natural unemployment rate is evaluated by an economy's supply side, therefore economic institutions and production possibilities. Natural rate of unemployment is also referred as the combination of structural and frictional unemployment that tends to reside in an efficient and booming economy where resource and labor market is mostly in equilibrium.
Answer:
Gender inequality is a social issue where boys and girls are treated equally. Girls are unacceptable in society and are often killed before birth. In many parts of India, a girl child is killed even before birth.
Due to the patriarchal norms, the women have been ranked lower compared to men, and they are subjected to humiliation many a time.
Gender inequality is one of the major reasons behind a country not flourishing to its full potential. The economic slope of a country goes down, as women are not encouraged to be a part of the economy, and their rights are suppressed.
The ratio between the boys and the girls is unequal, and due to that, the population increases as if a couple has a girl child, they try again for a boy child.
Gender inequality is a curse to society, and we should try to remove it from our society for the country to make progress.