Answer:
A) Natural selection caused the pigweed to mutate, creating a new triazine-resistant species.
Explanation:
Due to constant use of triazine, the weed will build resistance to it over time unlocking the herbicides codes and making it ineffective.
Natural selection will play out allowing this weeds to bring about a sudden change in their genome that will become resistance, this resistance breed is what will then be produced over time because mutation is heritable and the herbicide then becomes ineffective and the weed continues to multiply and increase in volume.
They generally test for infections, changes in body tissue and organs, and they test for the presence of chemicals such as drugs or poisons.
Answer:
This happens due to both refraction and reflection. You're able to see the "red" on the apple because the light reflects off of it and into your eyes thus making the color visible.
Answer:
Unsaturated zone: The area between the soil-water belt and the water table where pore spaces are not saturated with water. Saturated zone: The zone of rock below and including the water table where pore spaces are completely filled with water.
Explanation:
