The stigma, which is a reproductive part of the plant where pollen is collected, will close usually within a few seconds of being touched by a pollinator. This prevents further pollen from interacting with the plant unless the stigma reopens, which usually does not occur
for 1. you put a las nueve y cincuenta de la tarde
2. is a las cinco cuarenta y cinco de la tarde
3. is a las doce de la tarde
4. is a las diez y veinticinco de la manana
5. is a las ocho y media de la manana
It will take a full 45 mins to have all students answer