Which of the Following Animals Do NOT Have Tissues

question 20

Multiple Choice

Which of the following animals do NOT have tissues?

• A) sponges
• B) annelids
• C) roundworms
• D) cnidarians
• E) more than one of these animals does not have tissues

---

Definitions:

Short-Run Equilibrium

A state in which supply equals demand within a particular market, specifically under the assumption that some conditions (like input prices) are fixed in the short term.

Marginal Cost

The charge for the production of one more unit of a product or service.

Marginal Revenue

The enhanced earnings a firm receives from offloading an extra unit of a good or service.

Marginal Cost

Marginal cost is the increase in total cost that arises from producing one additional unit of a good or service, a critical concept in economic decision-making and pricing strategies.