The Main Conclusion Darwin Reached After His Return from the Galápagos

question 46

Multiple Choice

The main conclusion Darwin reached after his return from the Galápagos Islands was that

• A) animals from the Galápagos are like those from China.
• B) the animals living on the Galápagos were common in England.
• C) animals do not evolve over time.
• D) species of animals change over time.

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Definitions:

Cyanide Ion

A negatively charged ion (CN-) known for its high toxicity; it is composed of one carbon atom triple-bonded to a nitrogen atom.

Nitrile Hydrolysis

Nitrile hydrolysis is a chemical reaction where a nitrile group (C≡N) is converted into a carboxylic acid or its derivatives through the addition of water (H2O).

Nitrile Hydrolysis

is a chemical reaction converting nitriles to carboxylic acids or their derivatives by reacting with water or other nucleophiles.

Grignard Synthesis

The formation of a Grignard compound through the reaction of an alkyl or aryl halide with magnesium in dry ether.