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 ぶっしつだったら
seibutsu gakuteki ōtōchōsetsubusshitsudattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 生物学的応答調節物質

1. If it were a biologically active substance.; If it were a substance regulating biological responses.

Tara Conditional