Modern Invertebrates First Appear in the Fossil Record During The

question 114

Multiple Choice

Modern invertebrates first appear in the fossil record during the:

• A)Precambrian era.
• B)Silurian period.
• C)Cambrian period.
• D)Devonian period.
• E)cyanobacteria.

---

Definitions:

Economic Assistance

Financial aid provided by governments or international institutions to support the economies of other nations, communities, or individuals in need.

Progressive Tax

A tax for which high-income taxpayers pay a larger fraction of their income than do low-income taxpayers.

Libertarians

Individuals who advocate for minimal government intervention in personal lives and the economy, emphasizing individual liberty and free markets.

Marginal Utility

The additional satisfaction or utility that a consumer gains from consuming one more unit of a good or service.