In Terms of Fine Motor Development, What Should the Infant

question 35

Multiple Choice

In terms of fine motor development, what should the infant of 7 months be able to do?

• A) Transfer objects from one hand to the other and bang cubes on a table.
• B) Use thumb and index finger in crude pincer grasp and release an object at will.
• C) Hold a crayon between the fingers and make a mark on paper.
• D) Release cubes into a cup and build a tower of two blocks.

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Definitions:

Hydrophilic

Describes molecules or substances that have a strong affinity for water, often because of the presence of polar groups.

Surface Carboxylate Groups

Functional groups on a solid surface where a carbon atom is double-bonded to an oxygen atom and single-bonded to another oxygen atom that is in turn bonded to a metal or hydrogen, typically present on surfaces for chemical reactivity.

Intermolecular Interaction

Forces that mediate between molecules, including hydrogen bonds, van der Waals forces, and dipole interactions, important in determining physical properties.

Polyunsaturated Vegetable Oil

A type of vegetable oil containing fats that have more than one unsaturated carbon bond in the molecule, making them generally more liquid at room temperature.