The absence of which hormone during development will cause the nervous system to develop abnormally and cause developmental delays?
A) thymosin
B) calcitriol
C) calcitonin
D) androgens
E) thyroxine
E
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Molecules that attract immune cells are known as _________.
A) interferons. B) opsonins. C) antigens. D) lysozymes. E) chemotaxins.
In the follicular phase of the uterine cycle, the ovary is
A) secreting progesterone. B) undergoing atresia. C) developing a mature follicle. D) forming the corpus luteum. E) All of the answers are correct.
Which of the following hormones is synthesized by the hypothalamus?
A. ADH (antidiuretic hormone) B. TSH (thyroid stimulating hormone) C. ACTH (adrenocorticotropic hormone) D. MSH (melanocyte stimulating hormone) E. T3 and T4
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "D"?
A. Site of protein synthesis B. Contains digestive enzymes C. Directs cellular activities, contains DNA D. Major site of ATP synthesis when oxygen is available E. Outer boundary of cell, controls entry and exit of substances