When the "Mitochondrial Eve" Hypothesis Was First Suggested,the Fossil Evidence

question 43

Multiple Choice

When the "Mitochondrial Eve" hypothesis was first suggested,the fossil evidence of modern humans only when back to about __________ years ago.

• A)10,000
• B)25,000,
• C)40,000
• D)90,000

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Definitions:

Radiant Energy

Energy that travels by waves or particles, particularly electromagnetic radiation such as light and heat.

Photosynthesis

A process used by plants and other organisms to convert light energy, usually from the sun, into chemical energy that can be later released to fuel the organism's activities.

NPP (Net Primary Productivity)

The rate at which plants and other photosynthetic organisms produce organic compounds in an ecosystem minus the rate at which they use some of these compounds for respiration.

Tropical Rain Forest

A hot, moist biome found near Earth's equator characterized by high levels of rainfall and biodiversity.