الجمعة، 6 مارس، 2015

Amazing butterfly

Amazing butterfly
Butterfly eggs are protected by a hard-ridged outer layer of shell, called the chorion. This is lined with a thin coating of wax which prevents the egg from drying out before the larva has had time to fully develop
 Each egg contains a number of tiny funnel-shaped openings at one end, called micropyles; the purpose of these holes is to allow sperm to enter and fertilize the egg
Butterfly and moth eggs vary greatly in size between species, but they are all either spherical or ovate

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