生物 せいぶつ がく てき応答 おうとう調節 ちょうせつ物質 ぶっしつだろう
seibutsu gakuteki ōtōchōsetsubusshitsudarō

Noun
Da Copula

Expresses probability ("probably…") of 生物学的応答調節物質

1. Biologically active substance; Probably a biologically active substance

Presumptive
Conjecture