Phenotypic sex, the apparent anatomic sex of an individual, is hormonally mediated and depends on the genetically determined gonadal sex
a. True
b. False
Indicate whether the statement is true or false
True
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Which of the following statements regarding brown fat is false?
A) Brown fat is found in infants. B) Brown fat functions in nonshivering thermogenesis. C) Brown fat contains a rich vascular supply. D) Brown fat is innervated by the sympathetic nervous system. E) Brown fat is concentrated around visceral organs in the adult.
In the diagram, which region includes B cells, plasma cells and macrophages?
a) B b) C c) D d) E e) None of these choices
Myocardium (cardiac muscle tissue) must rhythmically contract for a lifetime. This requires a considerable amount of energy production by the cells. You would expect to see a relatively high amount of which organelle in these cells?
A) cytoskeleton B) smooth endoplasmic reticulum C) mitochondria D) lysosomes
Answer the following statements true (T) or false (F)
1 Secretory products are released from gland cells by exocytosis in merocrine secretion. 2 Aprocrine secretion occurs when gland cells lose part of their cytoplasm along with the secretory product. 3 Endocrine secretions are discharged, often through a duct, onto the surface of the skin or the epithelial lining of an internal passageway that communicates with the exterior. 4 Holocrine secretion occurs when gland cells become packed with secretory products and then burst apart, releasing the secretion and destroying the cells. 5 Exocrine secretory products (hormones are released into the surrounding tissues.