Xylem is able to extract water from soil because it is in direct contact with the soil
A. true
B. false
B
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What happened in Australia when rabbit hemorrhagic disease virus was released to control the rabbit population?
What will be an ideal response?
Plants in the desert-adapted families Cactacea (cactus) and Euphorbia (euphorbs) share many of the same physical characteristics, such as succulent stems that store water and CAM photosynthesis, but they do not share a recent common ancestor. This evidence suggests that these families are an example of
A. convergent evolution. B. homologous structures. C. vestigial structures. D. divergent evolution.
Dominant
What will be an ideal response?
Arrange the following electron carriers in the electron transport chain, based on their standard reduction potentials.Cytochroms a3(Fe3+) + e? ? Cytochrome a3 (Fe2+) Eo (volts) = 0.35Ubiquinone + 2H+ + 2e? ? Ubiquinone H2 Eo (volts) = 0.10Cytochrome a (Fe3+) + e? ? Cytochrome a (Fe2+) Eo (volts) = 0.29Cytochrome c (Fe3+) + e? ? Cytochrome c (Fe2+) Eo (volts) = 0.25
A. cytochrome c - ubiquinone ? cytochrome a ? cytochrome a3 B. cytochrome a3 ? cytochrome a ? cytochrome c ? ubiquinone C. ubiquinone ? cytochrome a ? cytochrome a3 ? cytochrome c D. ubiquinone ? cytochrome c ? cytochrome a ? cytochrome a3