id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
pn89d50762n	Jihyun Won	Phenotypic and Genomic Variations between and within Natural Populations in Daphnia pulex	1904		.txt	text/plain	197	8	21	Natural genetic variation is essential for organisms to adapt to their local environment and to changing environments. One of the key objectives in evolutionary biology is to understand the underlying sources of phenotypic variation in natural populations.	cache/pn89d50762n.txt	txt/pn89d50762n.txt