Some Researchers Think That Autism Is Due to

question 19

Multiple Choice

Some researchers think that autism is due to

• A) impairment in an innate, core brain function that leaves the child unable to detect others' mental states.
• B) mercury commonly found in recommended childhood vaccinations.
• C) mutations in the child's genetic code, usually inherited through the father's genes.
• D) a diet during the prenatal period and the first year that was lacking in essential vitamins and proteins.

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Definitions:

Biodiversity Hotspot

Biogeographic region that is a significant reservoir of endemic biodiversity and is threatened with continued habitat destruction.

Endemic Species

Localized, native species that are not found anywhere else in the world. Compare with cosmopolitan species.

Human Population

The total number of humans currently living on Earth, which is subject to change due to birth, death, and migration rates.

Tropical Location

Geographic areas that are situated close to the equator, characterized by warm temperatures year-round and, in many cases, a high level of biodiversity.