In which of the following regions has AIDS killed the largest number of individuals?
A) India
B) Sub-Saharan Africa
C) United States
D) China
E) United Kingdom
B
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Which of the following lead(s) to genetic variation in sexually reproducing organisms?
a. the process of meiosis b. the combination of male and female gametes during fertilization c. mutations that occur during development d. the process of meiosis and the combination of male and female gametes during fertilization
The products of ____ are N2O and N2
a. ammonification b. biological magnification c. denitrification d. nitrification e. nitrogen fixation
Which of these is a possible function of trichomes? Select all that apply.A) Reflect light from leaf surfacesB) Store or secrete saltC) Structural supportD) Irritate potential herbivoresE) Defend against insects
What will be an ideal response?
The DNA of microorganisms is made up of subunits called
A. nucleotides. B. histones. C. mRNA. D. polymerases. E. amino acids.