Changes in the Orientation of the Earth's Axis Over a 26,000-Year

question 128

Multiple Choice

Changes in the orientation of the Earth's axis over a 26,000-year cycle is known as

• A) eccentricity.
• B) obliquity.
• C) precession.
• D) inclination.

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Definitions:

Cytochrome C

A small heme protein found in the mitochondria of cells, playing a role in the electron transport chain and the process of cellular respiration.

Electron Transport Chain

A series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.

Amino Acid Sequence

The order in which amino acids are arranged in a protein, dictating the protein's structure and function.

Prokaryotes

Microorganisms characterized by the absence of a distinct nucleus and other organelles, including bacteria and archaea.