Sometimes premature babies suffer from respiratory distress syndrome. What substance would you administer in a breathing tube to the infant?
A) antibiotics B) surfactant
C) anti-inflammatory drugs D) hydrocortisone
Answer: B
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DNA is found in all the following except:
A. mitochondria of animals. B. mitochondria of plants. C. chloroplasts of plants. E. many eukaryotic viruses. F. ribosomes of eukaryotes.
The primary curvatures of the spine serves mainly to
A) accommodation of the thoracic and abdominopelvic viscera. B) aligning the weight of the head over the legs. C) increasing the ability to extend the limbs. D) take weight off of the hips. E) shifting the weight of the trunk to the hips and lower extremities.
The study of the frequency and distribution of a disease in a defined population is ________.
A. medicine B. clinical microbiology C. immunology D. epidemiology E. pathology
In great tits, increased warming has resulted in
A) earlier egg laying. B) earlier migration schedules. C) greater mortality. D) larger body size.