The process by which sympatric speciation might occur would most likely be the result of:
A. convergent evolution.
B. adaptive radiation.
C. natural selection.
D. vicariance.
C
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Heritability of a trait applies only to its variation in a particular population across the range of environments that exist for that population at a given time
A. true B. false
The heritability of a trait is the ____
a. sum of all phenotypic variation in a population b. average amount of genetic variation in each individual c. proportion of phenotypic variation that is caused by different genotypes d. absolute measurement of genotypic variation in a population e. proportion of phenotypic variation that is caused by the environment
Which is the correct sequence of steps in the scientific method?
A. form hypothesis - observation - collect data - analyze results - design an experiment B. form hypothesis - observation - design an experiment - collect data - analyze results C. observation - analyze results - draw conclusion - design an experiment - form hypothesis D. observation - form hypothesis - design an experiment - collect data - analyze results E. observation - analyze results - form hypothesis - draw conclusions - design an experiment
Natural selection changes allele frequencies in populations because some __________ survive and reproduce more successfully than others.
A) alleles B) loci C) gene pools D) species E) individuals