Which structure caps the head of a mature sperm and enables the sperm to penetrate an egg?
A. Axoneme
B. Acrosome
C. Nucleus
D. Mitochondria
E. Flagellum
B. Acrosome
Anatomy & Physiology
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The appendicular skeleton consists of the parts that support and protect the head, neck, and trunk.
Answer the following statement true (T) or false (F)
Anatomy & Physiology
Each hemoglobin molecule contains
A) four alpha chains. B) one alpha and one beta chain. C) four iron atoms. D) one heme group. E) a molecule of oxygen and a molecule of carbon dioxide.
Anatomy & Physiology
The glenohumeral joint is formed by articulation of the
a) humerus, radius and ulna. b) humerus and radius. c) humerus and clavicle. d) humerus and ulna. e) humerus and scapula.
Anatomy & Physiology
The optimal pH range for the stomach enzyme pepsin is
A. 2-4. B. 6-8. C. 7.3-7.4. D. 10-12. E. 12.0-13.5.
Anatomy & Physiology