MOST of the Height Growth of a Plant Is Due

question 144

Multiple Choice

MOST of the height growth of a plant is due to:

• A)changes in cell number but not cell dimension in the apical meristem.
• B)changes in cell dimension but not cell number in the elongation zone.
• C)both changes in cell number and cell dimension, roughly equally.
• D)thickening of the cell walls in the zone of maturation.

---

Definitions:

Break-even Point

The level of production or sales at which total revenues equal total expenses, resulting in neither profit nor loss.

Margin of Safety

The difference between actual or projected sales and the break-even point, indicating the cushion a business has before it incurs a loss.

Operating Leverage

A measure of how sensitive net operating income is to a given percentage change in dollar sales.

Net Operating Income

The income derived from a firm's core business operations, not including taxes and interest expenses.