The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that

 A) tropical communities are older.

 B) tropical regions generally have more available water and higher levels of solar radiation.

 C) higher temperatures cause more rapid speciation.

 D) diversity increases as evapotranspiration decreases.

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#Question id: 10407

#SCPH06 I Botany

Dark induce gene expression activated by___

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#Question id: 443

#SCPH05 I Biotechnology

The free energy for ATP hydrolysis in vivo is actually greater than the standard free energy change of -30 kJ mol-1 because

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#Question id: 4919

#SCPH12 I Genetics

Genes for cytoplasmic male sterility in plants are generally located in

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#Question id: 6972

#I Life Science/ Life Sciences Group – I-V

Sodium ions influx and passive water movement result in fluid-filled blastocoel in __________embryos.

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#Question id: 8927

#I Life Science/ Life Sciences Group – I-V

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that