ຮູບແບບຂອງພະຍາດແມ່ທ້ອງ
ລາຍລະອຽດຂອງຜະລິດຕະພັນ
(dissection anatomical and magnified earthworm model)subject of morphol-ogy of the earthworm. ຮູບແບບຂອງພະຍາດແມ່ທ້ອງ may be used anterion portion of an earthworm.It is designed in accord with text books used for classroom self-study and shows the exter-for high school biology as a visual aid onnal features and internal structure.