/hich of the following is an example of disruptive selection? O Short weeds that grow close to the height O Dark-colored moths that hl survive to reprod

A farmer uses an herbicide called triazine to control pigweed in his field.  Initially, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed.  Which of these is the best explanation for what happened? Group of answer choices:   Natural selection favored triazine-resistant pigweed, which was more likely to survive and reproduce. Some pigweed plants adapted to become resistant to triazine and passed the trait to their progeny. Natural selection caused the pigweed to mutate, creating a new triazine-resistant species. The herbicide company lost its triazine formula and started selling lower-quality triazine. Triazine-sensitive pigweed is less efficient at photosynthesis.

Assuming that both types of pom-poms are present in the population, what do you think would happen to the pom-poms population if the black forest experienced a prolonged drought so all the trees died and the habitat red grassland

It is believed that trichomes give an evolutionary advantage to plants when herbivory is high because the trichomes may be irritating to the animals that feed on these plants. In these situations, the selection  pressure would favor plants with more trichomes. The experiment described above mimics this condition. What type of selection is represented here? A. Stabilizing B. Disruptive C. Directional selection