On Average, Children Begin to Walk Without the Support of Others

question 50

Multiple Choice

On average, children begin to walk without the support of others around age __________.

• A)9 months
• B)11 months
• C)13 months
• D)15 months

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Definitions:

Phototropin

A protein that acts as a blue-light receptor, causing phototropic responses in plants towards light sources.

Phototropic Response

the growth or movement of a plant organ toward or away from light, as a response to its direction.

Phytochrome

A blue-green, proteinaceous pigment involved in a wide variety of physiological responses to light; occurs in two interconvertible forms, Pr (red-absorbing phytochrome) and Pfr (far-red-absorbing phytochrome).

Bolting

The production of a tall flower stalk by a plant that grows vegetatively as a rosette (growth habit with a short stem and a circular cluster of leaves).