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 ぶっしつじゃなかったです
seibutsu gakuteki ōtōchōsetsubusshitsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 生物学的応答調節物質

1. Was not a biological response modifier.; Wasn't a biological response regulator.

Past/Perfective
Negative
Polite
Casual Register