Precursors of Voluntary Movements That Appear Between the Ninth and Fifteenth

question 32

Multiple Choice

Precursors of voluntary movements that appear between the ninth and fifteenth month after birth, such as reflexive walking, swimming, crawling, and climbing movements are what types of reflexes?

• A) Primitive survival reflexes
• B) Primitive postural reflexes
• C) Encoding reflexes
• D) Decoding reflexes
• E) Startle reflexes

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Definitions:

Ionizing Radiation

Radiation with enough energy to remove tightly bound electrons from atoms, thus creating ions, and can lead to chemical changes and damage biological tissues.

Mutation

describes a change in the DNA sequence within a gene or chromosome of an organism leading to the creation of a new character or trait not found in the parental type.

DNA

Deoxyribonucleic acid, the molecule carrying genetic instructions for the development, functioning, growth, and reproduction of all known living organisms and many viruses.

Physical Change

A type of change in which the form of matter is altered but one substance is not transformed into another, maintaining the material's chemical properties.