In populations of the greater prairie chicken in Illinois, genetic diversity was lost through
A) mutation and restored by natural selection.
B) genetic drift and restored by natural selection.
C) gene flow and restored by mutation.
D) genetic drift and restored by gene flow.
Answer: D
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________ , also known as "jumping genes," are examples of mobile DNA elements.
Fill in the blank(s) with the appropriate word(s).
Ecomorphs are ____
a. distantly related members of the same genus that are morphologically and ecologically diverse b. closely related members of the same genus that are morphologically similar and ecologically diverse c. members of the same species that live in very different habitats d. distantly related members of the same genus that are morphologically and ecologically similar e. closely related members of the same genus that are morphologically and ecologically similar
Earthworms have a(n) ____
a. exoskeleton b. endoskeleton c. hydrostatic skeleton d. segmental skeleton e. squishy skeleton
Which of the following statements about Type II diabetes is true?
a) It is the most prevalent form of diabetes in the US b) It is caused by too few insulin producing cells in the pancreas c) It can cause blindness d) Both a and c are true e) Both b and c are true