Mendel hypothesized that gametes have only one factor or allele for each inherited trait. this hypothesis is supported by the observation that a) diploid cells are produce by meiosis. b) haploid cells are produced by meiosis. c) diploid cells are produce by mitosis. d) haploid cells are produced by mitosis.

because photosynthesis could not occur (apex)

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.