Mario sets up an experiment to determine the source of the oxygen gas produced by photosynthesis. to determine this, he uses an isotope of oxygen called o-18. he labels the o-18 oxygen so he can follow its path through photosynthesis. plant a is given carbon dioxide that contains the o-18 isotope. plant b is given water that contains the o-18 isotope. when he examines the oxygen from both plants, only plant b produced o-18 oxygen. what conclusion should he draw about the source of oxygen produced through photosynthesis?
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Biology, 22.06.2019 20:30
Aspecies has evolved an asexual mode of reproduction by having offspring develop from unfertilized eggs. which of the following will be true of this species' response to natural selection? there will be more deaths from natural selection because there is no mutation. there will be less genetic variation from recombination and a risk of not adapting quickly to environmental change. the species will increase in numbers because genetic variation is increased. the species will compensate for loss of genetic variation by hybridizing with other species. there will be fewer deaths from natural selection because sexual recombination always leads to extinction.
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Biology, 22.06.2019 22:00
Examine the following diagram. place the labeled layers in order from youngest to oldest.
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Biology, 22.06.2019 23:50
When a plant is genetically identical to its parent plant what is this called
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Biology, 23.06.2019 03:20
Utilizando-se duas lâminas de microscopia, foi colocada uma gota de sangue humano em cada uma delas. a cada gota foi juntada igual quantidade de soro anti-a na primeira e soro anti-b na segunda. após a mistura do sangue com os respectivos soros, foi observada aglutinaç? o nas duas lâminas. a partir desses dados podemos afirmar que o indivíduo, quanto aos grupos sanguíneos abo, é: escolha uma: a. grupo b. b. grupo ab. c. possui dois tipos de anticorpo no plasma. d. possui apenas um tipo de anticorpo no plasma. e. grupo a.
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Mario sets up an experiment to determine the source of the oxygen gas produced by photosynthesis. to...
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