How do tortoises differ among the galapagos islands? what causes these differences?

How did tortoises and birds differ among the islands of the Galapagos? The tortoises on the Galapagos Islands all had different shaped shells; therefore they were different species of the same category of tortoises. ... Darwin found several types of small, ordinary brown birds.

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Explanation:

D

Explanation:

A) Water that falls from the clouds towards the ground, especially as rain or snow.

B) The continuous movement of water on, above and below the surface of the Earth.

C) When plants or animals create offspring.

D) a recurring  process where dead plants decomposes and provides nutrients to the soil that are absorbed by plant roots, making more plants grow.

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