The diurnal or nocturnal behavior of animals is regulated - in a large part - by which of the following hormones?
A. calcitonin
B. serotonin
C. melatonin
D. oxytocin
E. epineprhine
C
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Desensitization
A. stimulates an increase in IgG. B. reduces the number of mast cells. C. increases the number of basophil cells. D. is a treatment for hypersensitivity reactions. E. stimulates an increase in IgG AND is a treatment for hypersensitivity reactions.
List at least 3 adaptations of rocky intertidal animals to resist desiccation
What will be an ideal response?
What are 2 reasons why tropical environments are potentially less vulnerable to the effects of oil pollution than higher latitude areas?
What will be an ideal response?
The greatest number of pathogens enter the body through the ________.
A. skin B. respiratory system C. gastrointestinal system D. urinary system E. genital system