An arthropod exoskeleton is composed of
A) chitin.
B) calcium carbonate.
C) cellulose.
D) lignan.
E) silica.
A
Biology & Microbiology
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A) biological B) chemical C) physical separation D) biological, chemical, and physical separation
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As part of the fertilization process, the egg completes meiosis I. Indicate whether the statement is true or false
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Darwin's book in which he described his views on evolution is:
A. On the Origin of Species. B. Survival of the Fittest. C. On the Principle of Population. D. Principles of Geology.
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Arrange the steps of bone repair in order: 1. Remodeling; 2. Bony callus; 3. Hematoma; 4. Fibrocartilaginous callus
A. 1,2,4,3 B. 1,2,3,4 C. 3,4,2,1 D. 2,1,4,3 E. 4,3,2,1
Biology & Microbiology