At What Substage of Piaget's Sensorimotor Period Do Infants Use

question 10

Multiple Choice

At what substage of Piaget's sensorimotor period do infants use their bodies to act on the physical environment, repeating actions because they produce a desired effect?

• A) Substage 2: primary circular reactions
• B) Substage 5: tertiary circular reactions
• C) Substage 3: secondary circular reactions
• D) Substage 4: coordination of secondary circular reactions

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Definitions:

Nervous

Pertaining to the nervous system, which includes the brain, spinal cord, and peripheral nerves, or feeling anxious and apprehensive.

Steroid

A type of organic molecule with a characteristic molecular structure containing four rings, used in medicine to reduce inflammation and as hormones in the body.

IgM

Immunoglobulin M, a type of antibody that is produced initially in response to an antigen and indicates a current infection in the body.

Antibodies

Proteins produced by the immune system that recognize and neutralize foreign substances such as bacteria and viruses.