Fossilized Stromatolites

question 13

Multiple Choice

Fossilized stromatolites

• A) all date from 2.7 billion years ago.
• B) formed around deep-sea vents.
• C) resemble structures formed by bacterial communities that are found today in some warm, shallow, salty bays.
• D) provide evidence that plants moved onto land in the company of fungi around 500 million years ago.
• E) contain the first undisputed fossils of eukaryotes and date from 2.1 billion years ago.

Identify scenarios leading to the entry or exit of firms in monopolistic competition.

Describe how monopolistic competition leads to excess capacity and over-differentiation.

Contrast monopolistic competition with perfect competition and monopoly.

Evaluate the efficiency of monopolistic competition in the long run.

---

Definitions:

Ackerman Arm

A component in the steering mechanism of a vehicle that helps maintain optimal angles of the wheels for better control and handling.

Cross Tube Assembly

A component in vehicle suspension systems that connects and provides support across other structural parts.

Ball Sockets

A type of bearing that allows for rotational movement in all directions, commonly used in automotive steering systems.

Ackerman Arms

Components of the steering mechanism that help achieve different turning radii for the inner and outer wheels, improving cornering.