Which of the following is a possible scenario that could lead to a new species? a tree frog needs to jump higher to escape predators. the frog's offspring jump higher due to the frequency of jumping by the parent. over time, many mutations occur in the gene pool of a population of butterflies. a giraffe stretches its neck to reach the leaves at the top of the tree. the offspring are born with necks that are longer than the parents due to the stretching. a bird and a frog reproduce with one another, creating a "brog."

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