In which of the following tissues would one expect to see a lot of tight junctions?
a. red blood cells
b. kidney glomeruli
c. epithelial tissue of the urinary bladder
d. alveoli in the lungs
c. epithelial tissue of the urinary bladder
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Different body cells can respond differently to the same peptide hormones because _____
A) different target cells have different sets of genes B) each cell converts that hormone to a different metabolite C) a target cell's response is determined by the components of its signal transduction pathways D) the circulatory system regulates responses to hormones by routing the hormones to specific targets E) the hormone is chemically altered in different ways as it travels through the circulatory system
Your father has type B blood. Your mother has type O blood. You get tested and learn that your blood
is also type O. What does this tell you?
a. You were adopted and your parents didn't tell you. b. Your mother had a secret affair. c. Your father's genotype is IBi and your mother's genotype is ii. d. Your father's genotype is IBIB and your mother's genotype is ii. e. Your father's genotype is IAIB and your mother's genotype is ii.
The tubular units that compose compact bone are called?
Which of the following cells has the greatest number of different cellular organelles made of membranes?
A. bacteria B. animals C. plants D. viruses