______ with Anatomically Modern Features Existed in Africa About 195,000

question 36

Multiple Choice

______ with anatomically modern features existed in Africa about 195,000 years ago.

• A) Homo antecessor
• B) Homo neanderthalensis
• C) Homo heidelbergensis
• D) Homo sapiens
• E) Homo erectus

---

Definitions:

Endocrine System

The endocrine system is a network of glands in the body that produces and secretes hormones directly into the bloodstream to regulate bodily functions.

Pituitary Gland

A pea-sized gland located at the base of the brain, often termed the "master gland," because it controls various hormonal functions of other endocrine glands.

Absolute Refractory Period

The period immediately following an action potential during which a neuron is incapable of firing another action potential, no matter how strong the stimulus.

Neural Impulses

Neural impulses, also known as action potentials, are the electrical signals that travel along neurons, transmitting messages throughout the nervous system.