The Type of Skeleton Composed of Calcium Rich-Spines,cartilage or Bone

question 26

Multiple Choice

The type of skeleton composed of calcium rich-spines,cartilage or bone is a(n)

• A) exoskeleton.
• B) hydrostatic skeleton.
• C) gastrovascular cavity.
• D) endoskeleton.
• E) vascular canal.

---

Definitions:

Industry Tightening

A period where industry competition becomes more intense, often leading to consolidation, increased regulation, or higher barriers to entry.

Monopolistic Competition

A market structure characterized by many competitors selling products that are similar but not identical.

Pure Competition

A market structure characterized by a large number of sellers offering identical products, where no single seller can influence market prices.

Substitutes

Products or services that can serve as replacements for each other, fulfilling the same need or desire.