With which one of the following statements concerning possible explanations for the latitudinal gradient in number of...

Shiyi-Zhang on May 20, 2019

Why is B correct?

What is the different between rate-of-speciation hypothesis and climatic-stability hypothesis?

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Anna20 on August 11, 2020

Please can I follow up on Shiyi's question here? I also picked A, due to the sentence beginning with "however' in the time theory paragraph!

Any top tips for challenging passages such as these?

Emil-Kunkin on September 27 at 03:37AM

Rate of speciation, the fourth hypo, tells us that in the tropics evolution happens faster because populations become isolated from each other, while climatic stability points to the fact that extinction happens slower in the tropics because they have more resources.