Biology, 22.04.2020 21:37 dieguezisabel
Matter can undergo both chemical and physical changes. What indicates that the change was definitely
chemical?
The temperature changed.
A precipitate formed
The color changed.
A gas formed.
Answers: 1
Biology, 22.06.2019 00:30
When analyzing tree rings, what do scientists assume a thin ring indicates?
Answers: 2
Biology, 23.06.2019 00:10
What does the formula below represent? co2 + h20 → c6h1206 +02 a: photosynthesis b: ionization of glucose c: hydrolysis of carbohydrates d: dehydration
Answers: 1
Biology, 23.06.2019 02:10
Nextend of semester testsubmit testreader toolsinto-samosquitoes in tropical regions can carry and transmit the malaria parasite to humans. the mosquitoes used to be killed in these regions by sprayingthem with the insecticide ddt. the mosquitoes that were earlier sensitive to ddt are now not killed by ddt and grow and multiply even in the presenceof ddt. how can you explain this phenomenon? oa.all of the mosquitoes must have undergone a mutation for ddt resistance and produced similar kind of resistant offspring, whichevolved into a ddt resistant population.b.some of the mosquitoes must have undergone a mutation for ddt resistance and produced similar kind of resistant offspring, whichwould have been selected by nature,oc.all of the mosquitoes must have slowly increased their tolerance level to ddt and ultimately would have become completely resistantto ddtresetnextnext
Answers: 2
Matter can undergo both chemical and physical changes. What indicates that the change was definitely...
Mathematics, 22.12.2020 15:20
Mathematics, 22.12.2020 15:20
Physics, 22.12.2020 15:20
History, 22.12.2020 15:30
Mathematics, 22.12.2020 15:30
History, 22.12.2020 15:30
Mathematics, 22.12.2020 15:30
Social Studies, 22.12.2020 15:30
Health, 22.12.2020 15:30
Mathematics, 22.12.2020 15:30
Mathematics, 22.12.2020 15:30
Mathematics, 22.12.2020 15:30
Computers and Technology, 22.12.2020 15:30