Why Was the Evolution of the Extraembryonic Membranes Crucial for Colonisation

question 58

Multiple Choice

Why was the evolution of the extraembryonic membranes crucial for colonisation of land by the vertebrates? Extraembryonic membranes ________.

• A) provide an aqueous environment for embryo development
• B) provide nutrients that produce energy for development
• C) direct morphogenesis within the embryo
• D) give rise to crucial organ systems, like the heart and brain

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Definitions:

People's Republic of China

A sovereign state in East Asia, known as the world's most populous country, governed by the Communist Party of China.

Chinese Civil War

A conflict between the Communist Party of China and the Nationalist Party (Kuomintang) from 1927 to 1949, leading to the establishment of the People's Republic of China.

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The state of being free from outside control or not being subject to another's authority.

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