Homeostasis is the balancing of internal factors as changes in the external environment occur
Indicate whether the statement is true or false
true
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When adenylyl cyclase is activated ________
A) cAMP is created B) cAMP is destroyed C) G proteins bind to cAMP D) steroid hormones pass through the lipid bilayer
Viruses are classified by:
a. the sequence of their DNA. b. structural similarities. c. the sequence of their rRNA genes. d. the traditional Linnaean binomial nomenclature system. e. an international committee
The emerging disease known as anaplasmosis is transmitted by:
A) Ticks B) Fleas C) Mites D) Sand flies E) Lice
You have isolated a cell that is unable to produce cholesterol for its cell membranes. Which of the following defects is this cell most likely to have?
A) The cell will not be able to regulate the transportation of substances into and out of the cell. B) The cell will burst as a result of osmosis. C) The cell will be unable to transport nutrients. D) The cell will not be able to communicate with other cells. E) The cell membrane will not have the correct fluidity.