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Question
Twins produced when a single egg is fertilized are called __________ twins. Twins produced from two eggs ovulated at the same time are called __________ twins.
A. monozygotic; identical
B. dizygotic; nonidentical
C. monozygotic; dizygotic
D. dizygotic; monozygotic
E. nonidentical; identical
Answer
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Related questions
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The sympathetic chain of ganglia is found at the __________ levels of the spinal cord.
A. cervical and thoracic
B. thoracic and lumbar
C. thoracic, lumbar and sacral
D. sacral, lumbar and coccygeal
E. cervical, thoracic, lumbar, sacral, and coccygeal
Q:
Sympathetic nerve fibers are not associated with situations involving __________.
A. anger
B. digestion
C. exercise
D. stress
E. arousal
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Which of the following statements is true regarding parasympathetic tone?
A. It holds the resting heart rate below its intrinsic rate.
B. It accelerates the resting heart rate above its intrinsic rate.
C. It might increase or decrease heart rate depending on the situation.
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A. Abducens - V
B. Oculomotor - III
C. Facial - VII
D. Accessory - XI
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B. Beta
C. Delta
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A. Dural sinus
B. Lateral ventricle
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D. Subarachnoid space
Q:
The pyramidal cells of the precentral gyrus are called __________ neurons.
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C. first-order
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Which of the following is correct regarding the occipital lobe?
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B. It is the principal visual center of the brain.
C. It is the primary site for receiving and interpreting signals from the general senses.
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Planning, motivation, and social judgment are functions of the brain associated with which part of the cerebrum?
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B. Tegmentum in the midbrain
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The __________ function(s) in visual attention, such as to look and follow the flight of a butterfly.
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C. tegmentum
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A. To regulate the chemical environment of the nervous tissue
B. To rinse metabolic wastes from the nervous tissue
C. To provide oxygen and nutrients to the nervous tissue
D. To protect the brain from striking the cranium when the head is jolted
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Q:
From superficial to deep, the meninges occur in which order?
A. Dura mater, pia mater, arachnoid
B. Dura mater, arachnoid, pia mater
C. Pia mater, dura mater, arachnoid
D. Pia mater, arachnoid, dura mater
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Q:
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A. High altitude
B. Air pollution other than by carbon monoxide
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B. A diet predominantly based on red meat
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C. action of phospholipase A2
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A. adrenal glands; intestines
B. liver; kidneys
C. blood; kidneys
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A. Negative feedback inhibition
B. The antagonistic effect
C. Up-regulation
D. Enzyme amplification
E. Down-regulation
Q:
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A. G protein activates adenylate cyclase
B. cAMP activates protein kinases
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E. glucocorticoids; raises
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. The __________ secrete(s) __________, which promotes Na+ and water retention.
A. adrenal medulla; epinephrine
B. pancreas; cortisol
C. kidneys; corticosterone
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