The Following Statements Describe Features of Cardiovascular Systems

question 1

Short Answer

The following statements describe features of cardiovascular systems. Match the appropriate system from the list to each description. Some choices may be used more than once.
-blood is under least pressure as it leaves gills
A)direct gas exchange
B)open circulatory system
C)two-chambered heart
D)three-chambered heart
E)four-chambered heart

• A)direct gas exchange
• B)open circulatory system
• C)two-chambered heart
• D)three-chambered heart
• E)four-chambered heart

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Definitions:

Marginal Revenue

The additional income earned by selling one more unit of a good or service.

Marginal Costs

The change in total production cost that arises when the quantity produced is incremented by one unit.

Investment

The allocation of resources, usually money, in order to gain profitable returns as interest, income, or appreciation in value.

Workers

Individuals who perform tasks or jobs for pay, ranging from manual labor to professional occupations.