A randomized controlled experiment is Select one:
a. neither inherently weaker nor inherently stronger than an observational study.
b. inherently stronger than an observational study.
c. inherently weaker than an observational study.

check for the pregnancy rating of drug. if its class c or d see if other alternatives

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.