The Temperature at This Transition Layer Is About -100°C (-148°F)

question 106

Multiple Choice

The temperature at this transition layer is about -100°C (-148°F) .

• A) stratopause
• B) mesopause
• C) thermopause
• D) tropopause
• E) lithopause

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Definitions:

Bud Scale

A small protective covering over a bud that shields it from the elements and pathogens.

Casparian Strip

Layer of impermeable lignin and suberin bordering four sides of root endodermal cells; prevents water and solute transport between adjacent cells.

Vascular Cylinder

In eudicots, the tissues in the middle of a root, consisting of the pericycle and vascular tissues.

Root Hairs

Thin, hair-like extensions from the root of a plant that increase surface area for water and nutrient absorption.