The Table Above Is a Comparison of Several Characteristics of H.floresiensis

question 22

Multiple Choice

The table above is a comparison of several characteristics of H.floresiensis to those of nine other hominin species (arranged roughly from oldest to most recent) .What do these data suggest?

• A)A large brain is not necessarily required for toolmaking.
• B)Body mass and braincase volume are completely unrelated.
• C)The African environment tends to depress braincase volume and body mass.
• D)Hominins first evolved in and then radiated out from Asia.
• H)floresiensis is most closely related to Australopithecus afarensis or A.africanus.

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Definitions:

Adaptation

The process or result of an organism or species becoming better suited to its environment through genetic changes over generations.

Hydrothermal Vents

Openings in the sea floor that emit hot, mineral-rich water, supporting unique ecosystems that do not rely on sunlight for energy.

Pelagic Province

The ocean’s open waters.

Salt Content

The concentration of salt, particularly sodium chloride, in a given substance or environment.