Which Statement Is a Basic Lesson from Nature

question 1

Multiple Choice

Which statement is a basic lesson from nature? 

• A) Sunlight is the source of energy that sustains ecosystems. 
• B) Energy is not required to maintain energy flow and recycle chemicals. 
• C) There are no limits to population growth. 
• D) Populations of organisms, including humans, are kept in check by natural means.

---

Definitions:

Erectile Dysfunction

A medical condition in males characterized by the inability to achieve or maintain an erection suitable for sexual intercourse.

National Survey

A comprehensive, large-scale examination or inquiry conducted across a nation to gather statistical data or insights about the population on various topics.

Sexual Health

A state of well-being in relation to sexuality across the lifespan that involves physical, emotional, mental, and social dimensions.

Sexually Satisfied Couples

Partners in a romantic relationship who express fulfillment and contentment with their sexual experiences together.