I'll give 20 points to whoever me!
so i have to make 2 paragraphs. 1 for why the plants floated with carbon dioxide to float, and the 2nd one for why the plants didn't float without carbon dioxide. it doesn't have to be long. also would a great deal if you listed sources.

Urgent in guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?