Which type of speciation occurs when a physical or chemical sign is required before a species will mate? temporal behavioral hybrid sterility gametic?

Answer/Explanation:

The cumulative radiation released by the Sun is determined by calculating the radiation intensity produced by the sun's surface area. The sun has a radius of 695 x 106 m 4 providing 6.07 x 1018 m2 of surface area. Therefore the sun's overall power production is 64 x 10 al 6.09 x 1018 m2, which means 3.9 x 1026 watts.

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