All of the Following Are True About the Recent Discovery

question 34

Multiple Choice

All of the following are true about the recent discovery of the world's oldest child,dubbed "Lucy's baby," EXCEPT that

• A) she is a member of Australopithecus afarensis, a species many anthropologists consider ancestral to humans.
• B) the 3.3-million-year-old fossilized toddler was uncovered in northern Ethiopia.
• C) her remains, which are amazingly complete, include a remarkably well-preserved skull, milk teeth, tiny fingers, a torso, a foot, and a kneecap.
• D) the fossil suggests that the child died because her brain, which appears to have been larger than an average chimp brain at that age, was too large for her slowly developing skull.
• E) the fossil supports the theory that Au. afarensis walked upright on two legs but still retained an apelike upper body, including two complete shoulder blades similar to a gorilla's, so it could have been better at climbing than are humans.

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Definitions:

Token Economies

A behavioral modification technique that uses tokens as a form of reinforcement for desired behaviors, which can later be exchanged for privileges or rewards.

Delusional Statements

Assertions that are firmly maintained despite being contradicted by what is generally accepted as reality.

Control Group

In experiments, a group of subjects that does not receive the experimental treatment and is used as a benchmark to measure the effects of that treatment.

Operant Conditioning

A learning process by which the strength of a behavior is modified by reinforcement or punishment.