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What is the ultimate source of genetic variability?
A.inbreeding
B. radiation
C. Hybridization
D. Mutations

The length of time required for half of the radioactive atoms in a simple to decay is its

A. Half-life
B. Relative Date
C. Radioactive Date
D. Period

The two main sources of genetic variation are

A. Genotype and Phenotypes.
B. Gene shuffling and mutations
C. Sngle-gene traits and polygenic traits
D. Directional selection and disruptive selection

The process by which two species, for example, a flower and a pollinating insect, evolve in response to each other is called:

A. Convergent Evolution
B. Adaptive Radiation
C. Coevolution
D. Punctuated Equilibrium
 
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