Imagine you and your partner are preparing a serial dilution of a sample of pond water. While you were watching your agar, your partner labeled several test tubes with the numbers below . Which of these correctly expresses a dilution?

yeytyryyeyeyeyeyeeyeyey6

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.

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.