The Brain Is Thought to Be at Its Maximum Size

question 15

Multiple Choice

The brain is thought to be at its maximum size at about the age of 20 because ______.

• A) all synaptic formation ceases at this age
• B) at this age the brain has its maximum number of neurons, synapses and myelinated axons
• C) neurons are only produced to replace ones that have died
• D) the skull cannot expand to house a bigger brain

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Definitions:

Ambrosia

In classical mythology, the food of the gods, which conferred immortality; in general usage, something very pleasing to taste or smell.

Plowshares

Metal blades fitted to a plow, used in farming to cut through the soil.

Comparative Advantage

The ability of an entity to produce goods or services at a lower opportunity cost than other entities, leading to more efficient economic exchanges.

Production Possibilities Frontier

A curve depicting all maximum output possibilities for two goods, given a set of inputs and production technology.