Tiny Openings in the Cuticle-Covered Surfaces of Most Land Plants

question 66

Multiple Choice

Tiny openings in the cuticle-covered surfaces of most land plants, called ____, control water loss and carbon dioxide uptake for photosynthesis.

• A) gemmae
• B) tracheophytes
• C) sporopollenins
• D) stomata
• E) thalli

---

Definitions:

Income Quintile

An income quintile is a statistical measure dividing the population into five equal groups based on their income levels to analyze economic inequality or wealth distribution.

Non-Cash Assistance

Support provided to individuals or families that does not involve direct financial payments, such as food stamps, housing vouchers, or healthcare services.

Poverty Income Threshold

A specified income level, set by government standards, below which an individual or family is considered to be living in poverty.

Classified As Poor

A categorization for individuals or households whose income falls below a specific threshold set by a governing body, indicating they do not have enough resources to meet basic needs.