When Infants Are Held Upright with Their Feet Against a Surface

question 131

Multiple Choice

When infants are held upright with their feet against a surface and are moved forward, they appear to walk in a coordinated way. This reflex is referred to as:

• A) palmar reflex
• B) stepping reflex
• C) Babinski reflex
• D) walking reflex

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Definitions:

Common Ancestor

The most recent individual from which all organisms in a group are directly descended.

Monkeys

Primates that are not apes or humans, typically having a tail and being smaller than apes, inhabiting mainly tropical forests.

Human Evolution

The lengthy process of change by which people originated from apelike ancestors, involving developments in physical, social, and cultural traits.

Deuterostomes

A major division of the animal kingdom in which the anus develops from the first opening in the embryo, followed by the mouth.