In the process of endochondral ossification, ________ is(are) replaced by bone.
A. hyaline cartilage
B. fibrocartilage
C. connective tissue membranes
D. elastic cartilage
Answer: A
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Answer the following statements true (T) or false (F)
1. Neurons in the CNS are organized into functional groups. 2. Strong stimuli cause the amplitude of action potentials generated to increase. 3. The oligodendrocytes can myelinate several axons. 4. Enkephalins and endorphins are peptides that act like morphine. 5. In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier.
Erythrocytes transport oxygen and __________.
A. defend the body against pathogens B. initiate blood clotting C. regulate erythropoiesis D. transport nutrients E. transport some carbon dioxide
Which of the following is not a function of skeletal muscle?
A) produce movement B) maintain posture C) maintain body temperature D) all of the above are functions of the skeletal muscle E) A and B only
Convert 62.3 ?m into mm
A) 0.623 mm B) 62300 mm C) 6230 mm D) 0.0623 mm