Identical Twins Who Have Separate Placentas Are Somewhat Less Similar

question 56

Multiple Choice

Identical twins who have separate placentas are somewhat less similar than identical twins who share a placenta.This best illustrates the influence of ________ on development.

• A) prenatal environments
• B) genetic predispositions
• C) temperament
• D) serotonin

---

Definitions:

Serial Processing

A method of information processing in which operations are carried out one after the other in a sequence.

Parallel Processing

The processing of many aspects of a problem simultaneously; the brain’s natural mode of information processing for many functions, including vision. Contrasts with the step-by-step (serial) processing of most computers and of conscious problem solving.

Consciousness

The quality or state of being aware of one's own existence, sensations, thoughts, surroundings, etc.

Frontal Lobe

The part of the brain located at the front of each cerebral hemisphere, responsible for voluntary movement, expressive language, and managing executive functions.