Phytochrome Red (P _r) Differs from Phytochrome Far-Red (P _fr)

question 15

Multiple Choice

Phytochrome red (P _r) differs from phytochrome far-red (P _fr) in that

• A) P _r is converted to P _fr during the nighttime.
• B) P _r is converted to P _fr by absorbing sunlight.
• C) P _fr is converted to P _r by absorbing sunlight.
• D) P _fr is converted to P _r by absorbing far-red light that is available at dusk.
• E) P _r is converted to P _fr by absorbing far-red light, which is available only during full daylight.

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Definitions:

Section Width

The measurement of the width of a tire from its inner sidewall to its outer sidewall.

Asymmetrical Tire

A tire with a tread pattern that is not the same on both halves of the tire, designed to improve various performance aspects such as handling and noise.

Self-Sealing Tire

A type of tire that contains a special layer within the tire that can automatically seal punctures from nails or other objects.

Undertread

The layer of material found beneath the tread of a tire, helping to provide structural integrity and influencing the tire's performance characteristics.