The entire cardiovascular system is lined internally with a special type of epithelial tissue called _______
Fill in the blank(s) with correct word
endothelium
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Acclimatization is a term referring to
A) irreversible changes in phenotype due to natural environmental variation. B) irreversible changes in phenotype due to controlled environmental change. C) reversible changes in phenotype due to natural environmental variation. D) reversible changes in phenotype due to controlled environmental change.
Class II MHC proteins are present in the plasma membrane only when
A) a helper T cell has engulfed an antigen. B) an antigen-presenting cell has engulfed and is processing an antigen. C) a virus-infected cell secretes interferons. D) a cancerous cell gets attacked by NK cells. E) the body cells are healthy.
Which of the following is not one of the functions of the endocrine system?
What will be an ideal response?
Receptive fields of simple neurons are rectangular because they are best suited to stimulation from a slit of light.
Answer the following statement true (T) or false (F)