The First Organisms Thought to Have Evolved a Primitive Brain

question 36

Multiple Choice

The first organisms thought to have evolved a primitive brain in conjunction with a peripheral nervous system are _______.

• A) jellyfish
• B) sea anemones
• C) flatworms
• D) roundworms
• E) fish

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Definitions:

Sharecropping

A system of agriculture in which a landowner allows a tenant to use the land in return for a share of the crops produced on their portion of land.

Gang Labor

A system of labor, often used on plantations, where enslaved people were grouped into units or gangs for work, typically in agriculture.

Farm Prices

This term generally refers to the cost or price levels of agricultural products and commodities, which can significantly affect the economy.

Sharecropping Contract

An agricultural system prevalent after the Civil War where landowners allowed tenants to use the land in return for a portion of the crops produced on their portion of land.