A Flatworm Moves Nutrients and Gases Through Its Body Using

question 50

Multiple Choice

A flatworm moves nutrients and gases through its body using ____.

• A)a digestive system only
• B)a gastrovascular system only
• C)simple diffusion
• D)a digestive and gastrovascular system
• E)a digestive and respiratory system

Recognize the impacts of market entry and exit on the supply, demand, and pricing in the long run.

Discuss the notion of economic versus accounting profits in the context of perfect competition.

Identify the efficiency criteria for firms in perfect competition in terms of productive and allocative efficiency.

Understand the concept and implications of confounding variables in research.