Which of the following is not a function of membranes?
A) define cell boundaries
B) compartmentalization
C) information storage
D) regulation of transport
E) cell-cell communication
C) information storage
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Answer the following statements true (T) or false (F)
1. Phylogenetic analyses of some vertebrate mineralcorticoid and glucocorticoid receptors and their ligands has suggested that the hormones evolved prior to their receptors. 2. Vasotocin is present in non-mammalian vertebrates and shares structural and functional properties with mammalian antidiuretic hormone and oxytocin. Through these similarities it has been suggested that vasotocin could be the ancestral precursor to the posterior pituitary hormone in vertebrates. 3. Vitamin D is a hormone produced in part by exposure to sunlight. 4.
Vinblastine, a chemotherapeutic drug used to treat breast and testicular cancers, interferes with the assembly of
microtubules. Speculate how this drug works to inhibit cancer cell growth.
a. Vinblastine inhibits transition from G1 to S. b. Vinblastine inhibits transition from S to G2. c. Vinblastine inhibits cytokinesis. d. Vinblastine disrupts mitotic spindle formation and consequently mitosis. e. Vinblastine inhibits cyclin production.
Global air circulation patterns are produced by ____ differences in the amount of solar radiation reaching Earth
a. elevational b. latitudinal c. moisture d. rotational e. longitudinal
Which of the following statements about human population in industrialized countries is incorrect?
A) Average family size is relatively small. B) The population has undergone the demographic transition. C) Life history is r-selected. D) The survivorship curve is Type I. E) Age distribution is relatively uniform.