How Do Insects Overcome the Inefficiency of Their Hemolymph Flow

question 26

Multiple Choice

How do insects overcome the inefficiency of their hemolymph flow in taking oxygen to their tissues?

• A)Their bodies are tubular,thus increasing the body surface area where gaseous exchange takes place.
• B)Their respiratory system consists of tracheae,which are tiny air tubes that take oxygen directly to the cells.
• C)A countercurrent mechanism ensures that the maximum amount of oxygen is absorbed from the environment.
• D)Insects have highly vascularized extensions of their body walls,called parapodia.

Relate economic theories and concepts to historical economic periods and policy changes.

Interpret economic indicators and their implications for fiscal and monetary policy.

Understand the concept of fixed, variable, and mixed costs and their implications in cost-volume-profit analysis.

Identify and analyze stakeholders in business decisions involving cost assessments.

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