Which Part of the Mammalian Brain Is Disproportionately Smaller Than

question 9

Multiple Choice

Which part of the mammalian brain is disproportionately smaller than the corresponding part of a fish brain?

• A)medulla oblongata
• B)thalamus
• C)pons
• D)midbrain
• E)cerebrum

---

Definitions:

Positive Externality

A benefit obtained without compensation by third parties from the production or consumption of sellers or buyers. Example: A beekeeper benefits when a neighboring farmer plants clover. Also known as an external benefit or a spillover benefit.

Spillover Benefit

A positive effect experienced by bystanders or other parties not directly involved in the production or consumption of a good or service.

External Costs

Costs incurred by a third party as a result of an economic transaction that are not reflected in the transaction's price.

Product Differentiation

A strategy in which one firm’s product is distinguished from competing products by means of its design, related services, quality, location, or other attributes (except price).