If the energy of the sun no longer reached Earth, the primary productivity of which of the following ecosystems would be least affected?
A. taiga
B. temperate rain forest
C. deep sea hydrothermal vent
D. desert
E. coral reef
Answer: C
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cDNA is made from mRNA therefore, it lacks introns and contains only the coding sequence for the functional protein
Indicate whether the statement is true or false
The production of sterile male ligers is an example of __________.
A. A post-zygtic barrier B. The founder effect C. A pre-zygotic barrier D.. Sympatric speciation
Which of the following is most like the formation of identical twins?
A) cell cloning B) therapeutic cloning C) use of adult stem cells D) organismal cloning
Polyploidy as a mechanism of speciation occurs most commonly in which of the following life forms?
a. polychaete worms b. fungi c. plants d. salamanders e. molluscs