The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that A) tropica
l communities are younger. B) tropical regions have more available water and higher levels of solar radiation. C) warmer temperatures cause more rapid speciation. D) biodiversity increases as evapotranspiration decreases. E) tropical regions have very high rates of immigration and very low rates of extinction
The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that B) tropical regions have more available water and higher levels of solar radiation.
