Chemistry, 25.08.2021 06:20 chickenstripsare
Tính pH của dung dịch KOH 1,2.10-3 M và xác định nồng độ ion H3O+ có trong dung dịch?
Answers: 2
Chemistry, 21.06.2019 22:30
Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial
Answers: 1
Chemistry, 22.06.2019 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Tính pH của dung dịch KOH 1,2.10-3 M và xác định nồng độ ion H3O+ có trong dung dịch?...
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