Chapter 13 vocab l Crossword

The idea that living species are descendants of ancestral species were different from present day ones
Chronicle of evolution over million of years
Similarity resulting from common ancestry
Remnants of features that served important functions in organisms ancestors
Group of individuals of the same species
Consists of all copies of every type of allele
Change in the relative frequencies of alleles in a population over a number of generations
Leads to a loss of genetic diversity when a population is greatly reduced
When a population may gain or lose alleles when fertile individuals move in and out of a population
Contribution an individual makes to the gene pool of the next generation
Changes in the nucleotide sequence of DNA
Humans have modified species through selective breeding