In pea plants, the allele for yellow seeds (y) is dominant over the allele for green seeds (y). describe the genotypes and phenotypes of pea plants that are homozygous dominant, homozygous recessive, and heterozygous for this trait.

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla