We lack awareness of many of our bodies' systems for maintaining homeostasis. The sensations, movements, and secretions of organs such as the heart and intestines are governed by the
A. autonomic nervous system.
B. somatic nervous system.
A
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The afferent division of the nervous system is also known as the _____ division
A. motor B. cranial C. ganglial D. efferent E. sensory
The following are important steps in the process of endochondral ossification. What is the correct order for these events? 1. Enlarged chondrocytes die. 2. Osteoblasts replace calcified cartilage with spongy bone. 3. Chondrocytes enlarge and the surrounding matrix begins to calcify. 4. Blood vessels grow around the edges of the cartilage. 5. Perichondrial cells become osteoblasts and produce a
superficial layer of bone. A) 3, 1, 5, 4, 2 B) 1, 3, 5, 4, 2 C) 1, 5, 3, 4, 2 D) 2, 3, 1, 5, 4 E) 3, 1, 4, 5, 2
Cleavage as part of embryonic development is distinctive because it involves ________
A) the fusion of gametes B) cell division by mitosis C) meiosis D) None of the listed responses is correct.
As soon as the sex of the male fetus is identified, the tested have already been descended into the scrotum?
a. true b. false