The Existence of Evolutionary Trends, Such as Increasing Body Sizes

question 19

Multiple Choice

The existence of evolutionary trends, such as increasing body sizes among horse species, is evidence that ________.

• A) a larger volume-to-surface area ratio is adaptive in many mammals
• B) evolution generally progresses toward some goal
• C) evolution tends toward increased complexity or increased size
• D) in particular environments, similar adaptations can be beneficial to more than one species

Understand the structure and function of fish gills in gas exchange.

Recognize the unique characteristics of bird and mammal respiratory systems.

Understand the mechanisms of oxygen release from hemoglobin under different partial pressures.

Identify and describe the muscles involved in respiratory movements.

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Definitions:

Typeset

The composition of text by arranging physical or digital type to make written language legible, readable, and appealing when displayed.

Marginal Cost

The financial outlay required to produce an additional unit of a product or service.

Demand Curve

A graphical representation of the relationship between the price of a good and the quantity of the good that consumers are willing to buy.

Marginal Cost

The increment in cost due to the manufacture of an additional product or service unit.