Which of the Following Is Considered by Biologists to Be

question 86

Multiple Choice

Which of the following is considered by biologists to be a likely place where life might have first arisen on Earth?

• A)in hot water near undersea volcanoes
• B)on meteorites that landed on Earth
• C)deep in Earth's core
• D)on land surfaces that got moderately heavy rainfall

---

Definitions:

Basal Ganglia

A group of nuclei in the brain involved in coordinating movement as well as learning, behavior, and emotions.

Corticospinal Tract

A pathway in the central nervous system that conducts impulses from the brain to the spinal cord, controlling voluntary muscle movements.

Extrapyramidal Tract

A network of neurons in the brain involved in the coordination and control of motor functions, particularly those responsible for involuntary movements.

Myelin

A fatty substance that encases and insulates nerve fibers, speeding up electrical impulses between neurons and crucial for proper nervous system functions.