There Is Still Some Controversy Among Biologists About Whether Neanderthals

question 28

Multiple Choice

There is still some controversy among biologists about whether Neanderthals should be placed within the same species as modern humans or into a separate species of their own. Most DNA sequence data analyzed so far indicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which species concept is most applicable in this example?

• A) phylogenetic
• B) ecological
• C) morphological
• D) biological

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Definitions:

Plasma Membrane

The lipid bilayer that surrounds a cell, regulating the entry and exit of substances.

Water

A clear, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of most living organisms.

Plasma Membrane

The lipid bilayer that encapsulates a cell, controlling the movement of substances into and out of the cell.

Biological Membrane

A lipid bilayer structure that encloses the cellular contents of living cells and regulates the passage of substances in and out of cells.