American Middle-Class Children Display Behavior Classified as "Securely Attached" in the "Strange

question 106

Multiple Choice

American middle-class children display behavior classified as "securely attached" in the "strange situation" about what percent of the time?

• A) 12
• B) 25
• C) 65
• D) 95

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Definitions:

Speciation

The process by which populations evolve to become distinct species, often due to genetic isolation from other populations.

Phylogeny

The evolutionary history and the relationships among a species or group of species.

Sympatric Speciation

The evolution of new species from a single ancestral species while inhabiting the same geographical region, without geographic isolation.

Disruptive Selection

A type of natural selection that favors extreme values of a trait over intermediate values, possibly leading to speciation.