A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these explanations best explains what happened?
A. The herbicide company lost its triazine formula and started selling poor-quality triazine.
B. Triazine-resistant weeds were more likely to survive and reproduce
C. Natural selection caused the pigweed to mutate, creating a new triazine-resistant species
D. Triazine-resistant pigweed has less efficient photosynthesis metabolism.
Answers: 3
Chemistry, 21.06.2019 14:00
How many ions that have a +1 charge will bond with an ion that has a -2 charge
Answers: 1
Chemistry, 22.06.2019 12:20
Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02Γ108 k . what is the rms speed of the deuterons? express your answer using two significant figures.
Answers: 1
Chemistry, 22.06.2019 14:10
Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?
Answers: 1
Chemistry, 22.06.2019 16:00
How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?
Answers: 2
A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triaz...
Computers and Technology, 31.08.2019 16:30
Biology, 31.08.2019 16:30
Mathematics, 31.08.2019 16:30
Mathematics, 31.08.2019 16:30
Business, 31.08.2019 16:30
Mathematics, 31.08.2019 16:30
Mathematics, 31.08.2019 16:30
Mathematics, 31.08.2019 16:30