How will a microscopic model of an ecosystem differ from a large-scale system? Microscopic models move at a much faster rate than large-scale systems.

Ecosystem relationships cannot be observed in a microscopic model.

Ecological hierarchy levels are structured differently in microscopic models.

Biospheres in microscopic models will not change at all like they do in large-scale systems.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

bradycardia ( blood presssure below 120/80mmhg )

it is contraindicated to give nitroglycerin to patients with blood pressure that is lower than normal range because the drug can cause blood pressure to drop further. it can lead to paradoxical bradycardia and less commonly, threatening hypotension.