MicroRNAs are important gene regulators, but the miRNAs are also regulated in turn by other RNAs. Which, if any, of the following classes of RNA are not known to contain RNAs that regulate miRNAs?

#Question id: 11282

#SCPH28 | Zoology

Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?

#Question id: 11330

#SCPH06 I Botany

Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?

#Question id: 11330

#SCPH28 | Zoology

Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?

#Question id: 11331

#SCPH06 I Botany

Based on the intermediate disturbance hypothesis, a community’s species diversity is increased by

#Question id: 11331

#SCPH28 | Zoology

Based on the intermediate disturbance hypothesis, a community’s species diversity is increased by

#Question id: 11332

#SCPH06 I Botany

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.