Why Was the Broad-Spectrum Revolution a Significant Event in Human

question 18

Multiple Choice

Why was the broad-spectrum revolution a significant event in human evolution?

• A)It consisted of a massive fluorescence of colored cave paintings beginning about 70,000 B.P.,which suggests the evolution of color vision and a truly human-style brain organization.
• B)It brought about a new tool tradition based on flaked tools.
• C)It provided the environmental circumstances that selected for the evolution of "mitochondrial Eve."
• D)It provided new environmental circumstances that made important sociocultural adaptations like the development of plant cultivation more likely.
• E)It led to the extinction of the Neandertals,who had survived until then by eating big-game animals.

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Definitions:

Artificial Insemination

A means of conception in which sperm are injected into the vagina by a means other than sexual intercourse.

Ovulation

The phase in a female's menstrual cycle when a mature egg is released from the ovary into the fallopian tube for potential fertilization.

Genetic Material

The molecules (DNA or RNA) that store and transmit hereditary information from one generation to the next in all living organisms.

Chromosomes

Threadlike structures in the nucleus of cells made of DNA and protein that carry genetic information in the form of genes.