As Much as 90% of Forest Trees Require Mycorrhizae for Growth

question 69

Multiple Choice

As much as 90% of forest trees require mycorrhizae for growth, suggesting that:

• A) forest soils are rich in phosphorous
• B) mycorrhizae are found everywhere
• C) the plant-mycorrhizal association is ammensalic
• D) mycorrhizae significantly increase the uptake of nutrients
• E) forest trees do not have deep roots

---

Definitions:

Urban Sprawl

is the uncontrolled expansion of urban areas into the surrounding countryside, characterized by low-density residential and commercial development.

Urban Expansion

Refers to the growth of urban areas into surrounding regions, often attributed to population growth and increased demand for housing and services.

Human Ecology Theory

A theoretical framework that explores the relationships between humans and their environment, focusing on how social behavior is influenced by environmental factors.

Differential Organization Theory

A theoretical perspective proposing that variations in organizational structure and behavior are responses to differences in external environments.