The most widely accepted model for the evolution of modern humans is pictured here. What is this model called? 
A. Out-of-Africa and Replacement Model
B. Hardy-Weinberg
C. Multiregional continuity
D. Replacement Model
E. Out-of-Africa
Answer: A
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Modern nonvascular plants are generally small because they lack leaves
a. True b. False
Alternate forms of a gene are called ____
a. homologues b. loci c. alleles d. homozygous e. heterozygous
If a couple use the timing method (rhythm method) of birth control, about ______% of couples will become pregnant in a year.
A. 2 B. 10 C. 25 D. 50
If your hypothesis is rejected, then:
A) your experiment was a success. B) your experiment was poorly designed. C) your data is only half as reliable. D) you should change the level of statistical significance until your hypothesis is accepted. E) you may still have learned something important about the system you were testing.