Bekhorot 27 elsewhere in Shas

Niddah 32a:7: The Gemara asks: Granted, the immersions reported by Rabbi Yosei and by Rabbi Yehuda HaNasi are understandable, due to the teruma of Eretz Yisrael, i.e., these incidents occurred in Eretz Yisrael, where the touch of a menstruating girl disq
Temurah 21b:12-13: The Gemara asks: And according to the opinion of the others, who derive this halakha from the juxtaposition of the firstborn and second tithe, with regard to what do they interpret the verse: “You shall eat it before the Lord your God year
Niddah 47b:22-23: The Gemara asks: From where do we derive that the one year stated with regard to sacrificial animals is calculated by whole years and not by calendar years?
Zevachim 57a:5: § The mishna teaches: The firstborn offering is eaten by the priests, throughout the city of Jerusalem, prepared in any manner of food preparation, for two days and one night.
Arakhin 18b:8-9: The Gemara asks: With regard to the one year stated with regard to sacrificial animals, from where do we derive that it is calculated by whole years rather than calendar years?