As a Seed Germinates,its Shoot Points Upward Toward Light,and Its

question 34

Multiple Choice

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots grow in opposite directions as the plant is rotated?

• A)The roots and shoots respond to auxins,though in different directions.
• B)Statoliths move in the opposite direction in roots and shoots.
• C)The absorption of light occurs only in shoots.
• D)The circadian rhythms of roots and shoots are opposite.
• E)Differences in thigmotropism occur.

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Definitions:

Present Value Payback Period

A capital budgeting technique that calculates the period of time required for the present value of future cash flows to cover the initial investment cost.

NPV

Net Present Value, a calculation used to determine the current value of a series of future cash flows.

PI

The profitability index (PI), in financial management, is a method used to evaluate the desirability of an investment or project, calculating the ratio of the present value of future cash flows to the initial investment.

Cost of Capital

A financial metric representing the minimum return that a company must earn on its existing asset base to satisfy its creditors, owners, and other providers of capital.