bird chicken embryo anatomy , organ parts. egg embryo diagram. cross section dark black background. .

text font brand diagram circle presentation cartoon organ line advertising logo poster screenshot design drawing document number eye air albumen amnion anatomy animal baby background balut biology bird embryo black burn cell chick chicken development disease editable education egg embryonic explanation fertility fetus food infographic instruction isolated lesson nutrient parts reproduction roentgen science shell shelled sperm stage structure system vector vitellus xray yellow yolk cross ray detailed explanations dark parts diagram background vector