The Colonization of Glacier Bay, Alaska by Lichen and Mosses

question 38

Multiple Choice

The colonization of Glacier Bay, Alaska by lichen and mosses allowed the growth on the mountain avens, a(n) ____ species.

• A) nitrogen-fixing
• B) predator
• C) keystone
• D) K -selected
• E) r -selected

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Incremental Revenue

The additional revenue generated from a new business decision or activity.

Fixed Costs

Fixed costs are business expenses that remain constant regardless of the level of production or sales, such as rent or salaries.

Variable Cost

Costs that vary directly with the level of production or sales volume, such as raw materials and direct labor.

Fixed Cost

Costs that do not vary with the level of production or sales, such as rent, salaries, and insurance premiums.