Energy Flow in an Ecosystem Is

question 109

Multiple Choice

Energy flow in an ecosystem is

• A) cyclical.
• B) one-way.
• C) two-way.
• D) reversible under different conditions.
• E) a conservation mechanism.

---

Definitions:

Motor Commands

refer to signals from the brain or spinal cord that direct muscles to contract or relax, enabling movement.

Meningitis

An inflammation of the meninges, the protective membranes covering the brain and spinal cord, that can be caused by viruses, bacteria, or other microbes.

Kuru

A rare and fatal neurological disorder that was endemic among the Fore people of Papua New Guinea, caused by prions.

Learning

The process of acquiring new, or modifying existing, knowledge, behaviors, skills, values, or preferences, often as a result of studying, experience, or teaching.