Platyhelminthes Were the First Organisms to Have

question 8

Multiple Choice

Platyhelminthes were the first organisms to have:

• A) fully developed brain.
• B) notochord.
• C) central nervous system.
• D) eyes

---

Definitions:

Seasonal Agriculture

Farming activities that depend on seasonal cycles, often requiring temporary labor to plant, cultivate, and harvest crops.

Wages

The fixed regular payment, typically paid on a daily or weekly basis, made by an employer to an employee, especially to manual or unskilled workers.

Immigrant Families

Households that have relocated from one country to another, often facing unique challenges such as integration, language barriers, and cultural adaptation.

Working-Class Life

The everyday experiences, culture, and socio-economic conditions of individuals and families in the working class.