Examlex
Of the following words, which one has a word element meaning cobweb or spider?
Chorion
The outermost membrane surrounding an embryo of a reptile, bird, or mammal (in humans, it contributes to the formation of the placenta).
Extraembryonic Membrane
Membranes that are not part of the embryo but provide crucial support functions, such as nutrition and waste removal, during development in the womb.
Blastopore
The opening of the central cavity of an embryo in the early stage of development, which can develop into the mouth or anus in different animals.
Blastocoel
The fluid-filled cavity that forms inside the blastula, an early stage in the embryonic development of animals.
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