Which of the following is not an example of exponential growth?
a. a savings account that earns 2.5% interest each year for 10 years
b. the economy of a country that grows by 2% each year for 15 years
c. a child who saves one dollar each week for 10 years
d. bacteria that double their cell numbers every 30 minutes
e. a J- shaped curve
C; Exponential growth is characterized by a constant growth rate through time. The child's savings should be increasing each week if it were an example of exponential growth. Instead the savings is remaining the same, one dollar a week.
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Meiosis is most like
a. shuffling cards. b. painting a wall. c. building a house. d. playing a computer game. e. writing a novel
A couple has a child with Down syndrome. The mother is 39 years old at the time of delivery. Which of the following is the most probable cause of the child's condition?
A) The woman inherited this tendency from her parents. B) The mother had a chromosomal duplication. C) One member of the couple underwent nondisjunction in somatic cell production. D) The mother most likely underwent nondisjunction during gamete production.
In performing a Gram's staining techniques, the mordant is
A. Malachite green B. Safranin C. Methylene blue D. Gram's iodine E. Crystal violet
Which of the following would not occur if the cleavage furrow were unable to form?