Which of these research topics would be considered an example of community ecology? view available hint(s) which of these research topics would be considered an example of community ecology? scientists studying the american bullfrog have reported that the longer a bullfrog remains in the tadpole stage, the greater the chance of its survival once it undergoes metamorphosis. an agricultural ecologist investigated the effect of fertilizers on corn crop yields. a researcher found that the reproductive success of bumblebees decreased when the population density of honeybees increased. the decline in the number of bumblebees appeared to be a result of competition for nectar. a graduate student collected information about the age structure of the black bear population in wisconsin.

Plz me i need a good grade ! 10 government is a government system where all citizens that choose to vote have a say in their government? a: communist b: democratic c: autocratic d: theocracy

Asociologist wants to study a culture that occurs in some women’s prisons: “state families,” in which individual prisoners take on certain roles within a group of like-minded prisoners. there is previous evidence that younger prisoners will use older inmates who play the roles of grandparents as a resource before they will turn to staff for and advice. the lieutenant in charge of a dorm of long-term prisoners offers to gather volunteers to speak to the researcher and also offers to vouch for the integrity of the researcher. the use of this staff is: a valid use of a statistical technique referred to “snowball sampling” wherein the inclusion of the first subject leads to the recruitment of another one subject.a useful tactic in obtaining a sample of prisoners who both meet the criteria and who will be honest with the researcher.wrong and is prohibited; subject selection needs to be free from intervention by prison authorities or prisoners.acceptable only when the researcher’s irb grants a special waiver.

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?