Question

During a trip to the Galapagos Islands, which observation led Charles Darwin to suspect that organisms change over time?

Answer 1

During the trip to Galapagos island, Charles Darwin suspected that the mainland finches resembles the island finches but their beaks were not same. They were not the same species. This made Darwin suspect that the organisms change over time. The change in size of the beak was due to the adaptation. This made Charles Darwin give the theory of Natural Selection.

Answer 2

Galapagos island is the land of unique species of animals and plants. It has 26 types of species of birds and different species of plants that can easily adapt to the environment.

Further Explanation:

The Galapagos islands have thirteen large islands (archipelago) and around a hundred small islands. Galapagos word come from the oldest Spanish word for tortoise. So that the meaning of word is island of the tortoises. It is a home for unique and different species for example; giant tortoises, sea lions, iguanas and sharks.

This island has 26 types of species of birds out of which fourteen species are known as Darwin finches.Darwin observes that the Darwin finches are the fastest evolving vertebrate and they are adapted to the environment. This island has a unique kind of fauna. They have evolved from daisies. They are surrounded by the colorful mosses and lichens. These faunas are more adapted to this environment or climate which is hotter in a day and cooler at night.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Evolution

Keywords:

Galapagos, island, archipelago, Spanish, tortoise, giant, iguanas, Darwin, finches, vertebrate, mosses, lichens, faunas, climate.