A major difference between the somatic nervous system and the autonomic nervous
ID: 181253 • Letter: A
Question
A major difference between the somatic nervous system and the autonomic nervous system is that the somatic system is part of the peripheral nervous system, is under voluntary control. Contains sensory neurons, all of the above Thyroxin would influence an animal's production of ADH. metabolism. production of stem cells, none of the above The structural formula above represents a hormone. This hormone will be lipid-soluble. This hormone will be water-soluble. Receptors for this hormone will be found inside the cell membrane. Both b and c are accurate Both a and c are accurate One important hormone secreted by the adrenal gland is thyroxinc. calcitonin. epinephrine. neither a, b or c. Which class of human antibody is the most abundant in blood? IgM IgA IgG IgB IgD The maturation Where of hympocytes occurs in different places in the vertebrate's body. Where do B-cells mature? Bone marrow thymus pancreas pancreas thyroid in a human uterus, the tissue that changes in thickness to accommodate a potential embryo is the ovary fallopian tube cervix endometrium neither a, b, c or d
Explanation / Answer
8) Peripheral nervous system is functionally divided into
Both these systems contain sensory and motor neurons. But the main difference between the two systems is that the sensory system is under voluntary control, and autonomous nervous system is under involuntary control.
Therefore, option B is correct.
9) Thyroxin hormone controls the metabolism of carbohydrates, proteins and fats.
Thyroxin plays an important role in the regulation of basal metabolic rate by increasing the use of cellular oxygen to produce ATP.
In this way, thyroxin would influence an animal's metabolism.
Therefore, option B is correct.
11) Thyroxin is secreted by thyroid gland.
Calcitonin is also secreted by thyroid gland.
Epinephrine is secreted by adrenal medulla.
Therefore, option C is correct.
Epinephrine is the hormone that is secreted by adrenal medulla.
12) Among the five classes of antibodies, IgG antibodies are most abundant in blood.
Therefore, option C is correct.
13) B lymphocytes undergo development and maturation in the bone marrow of vertebrate’s body.
T lymphocytes originate in the bone marrow but their maturation occurs in the thymus.
Therefore, option A is correct.
14) In human uterus, endometrium shows decidua formation, which is the bed for the fertilized ovum.
Later, the endometrium undergoes changes in thickness by forming three layers of decidua to accommodate a potential embryo.
Therefore, option D is correct.
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