When the Trunk or Limb of a Tree Provides the Substrate

question 23

Multiple Choice

When the trunk or limb of a tree provides the substrate on which an epiphytic orchid grows,the arrangement benefits the orchid,which gets nutrients from the air and moisture from aerial roots,while the tree is unaffected.The relationship is referred to as

• A)amensalism.
• B)comensalism.
• C)competition.
• D)parasitoidism.

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Definitions:

Principle

A fundamental truth or proposition that serves as the foundation for a system of belief, behavior or reasoning.

Market Outcomes

The results of interactions between buyers and sellers in a market, determining price levels and quantities of goods and services exchanged.

Marginal Cost

The additional outlay required for the production of an extra unit of a product or service.

Automobile

A wheeled motor vehicle used for transportation, typically carrying passengers.