All of the following can contribute to desertification
EXCEPT
a. drought.
b. overplowing.
c. overgrazing.
d. farming in areas with high winds.
e. all of these.
Answer: e
You might also like to view...
The promoters of positively controlled operons require activator proteins, because
A) RNA polymerase easily recognizes the consensus sequence. B) they are required to inactivate the repressor proteins. C) the promoters have nucleotide sequences that bind RNA polymerase weakly, which are not close matches to the consensus sequence. D) they are needed to bind to the allosteric site of RNA polymerase.
Which of the following statements describes the law of segregation?
a. Two alleles will be inherited together during gamete formation. b. Two genes will be inherited together during gamete formation. c. Two alleles will segregate during gamete formation. d. Two genes will segregate during mitosis.
Imagine that you want all of the orange trees in your orchard to uniformly flower and set fruit. Which
type of plant hormone should you spray on your plants?
a. brassinosteroids b. auxins c. ethylene d. salicylic acid e. cytokinins
What is not a factor sited in the 1800s as being a reason animal life could not exist past 55 meters? a. The lack of light penetration
b. The inability to find food and mates. c. The tremendous amount of pressure. d. The consistency of the environmental conditions.