In a population of Asian elephants, the death
rate equals the birth rate. This population has
a. reached its biotic potential.
b. achieved zero population growth.
c. not exceeded its carrying capacity.
d. exponential growth.
e. geometric growth.
B
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Barophilic bacteria ________.
A. grow only in environments of reduced atmospheric pressure, such as found at high elevation B. tolerate high concentration of barium C. grow at pressures up to 1,100 atm D. require high concentrations of H2S gas for growth
Which process sets the developmental fate of an embryonic cell?
a. fertilization b. meiosis c. induction d. differentiation e. determination
Cytosine deamination is a common mutation that results in a cytosine being converted to a uracil. See Figure (a) below. During the processes of DNA repair and DNA replication, which of the following can occur?
Cytosine deamination can result in two different outcomes depending on the state of the cytosine. What will be an ideal response?
The largest number of food servings in your daily diet should be from
a. meats and beans. b. dairy products. c. vegetables and fruits. d. grains.