Lyell's Book Principles of Geology, Which Darwin Read on Board

question 38

Multiple Choice

Lyell's book Principles of Geology, which Darwin read on board the HMS Beagle, argued in favor of which of the following concepts?

• A) Earth's surface is shaped mainly by occasional catastrophic events.
• B) Meteorite impacts may have been a major cause of periodic mass extinctions.
• C) Earth's surface is shaped by natural forces that act gradually and are still acting.
• D) The processes that shape Earth today are very different from those that were at work in the past.

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Definitions:

Protein Fibers

Long, filamentous proteins critical to the structure and function of the body's connective tissues.

Connective Tissues

Tissues that support, bind together, and protect the organs of the body, including bone, cartilage, and blood.

Collagen

The primary structural protein found in skin and other connective tissues, widely used in cosmetic and medical treatments.

Elastin

A highly elastic protein in connective tissue that allows many tissues in the body to resume their shape after stretching or contracting.