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.

In what for do plants utilize nitrogen? why do they need nitrogen?

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Identify the terms using the following picture. principle of dominance item 1 can be described as the . item 2 can be described as the . the "p" represents from one parent.