The Atmosphere Present in Which of the Following Times Would

question 20

Multiple Choice

The atmosphere present in which of the following times would fail to support the life of a modern mammal?

• A) Archaean eon
• B) Cambrian period
• C) Cenozoic era
• D) Mesozoic era

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Definitions:

Nucleic Acid

Nucleic acids are biopolymers, or large biomolecules, essential for all known forms of life, including DNA and RNA, which carry genetic information.

Alpha-Helical Structure

A common motif in the secondary structure of proteins, characterized by a right-handed coil that provides structural support.

Hydrogen Bonds

Weak bonds formed between a hydrogen atom covalently bonded to one electronegative atom and another electronegative atom, playing a critical role in the structure of water and biological molecules.

Ionic Interactions

Forces of attraction or repulsion between ions or molecules with different charges.