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Biology 14 Online
OpenStudy (anonymous):

hii i have some questions 1-what is ontogenesis ? a-from embryological point: b-from genetic point of view: 2-what are the periods of ontogenesis? 3-what is a type of ovum according to a quantity and a position of a yolk in a cytoplasm? thanks

OpenStudy (anonymous):

i hope that you can solve this questiones i have exam after 2 days

OpenStudy (anonymous):

??????/where are you friends

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