Yes, it is possible. And in the case of those with celiac disease it would be prudent. If a given parish does not routinely provide the Precious Blood to the faithful this would require ptior arrangements with the priest.
No, a baby would not be given communion as part of the last rites – unless he/she is an Eastern Rite Catholic. Canon Law is specific on that topic, a child can only receive Communion in this instance if he understands what he is receiving and can do so with the proper reverence.Yes, it is possible to receive only the Precious Blood. For example, say a priest needs to give last rites to a baby, in that case the priest would likely only give a small portion of the Sacred Blood of Jesus to the baby. Also, the body, blood, soul, and divinity are all entirely present in both species.
yes, if both species are offered. for instance someone with celiac disease may have to do that, but usually they inform the priest ahead of time about this so provision can be made for them. The ordinary means of reception by the faithful is the host but in recent years at some times and places the chalice has been offered as well. Babies do not receive last rites, which include confession and communion. They are baptized, if necessary, in danger of death and may be confirmed if time allows. They may also receive anointing of the sick, but the part of “last rites” that includes forgiveness of actual sin is not necessary.
Yes, each species of the Blessed Sacrament possesses the fullness of the sacrament.
My mother does, being a sufferer of Celiac Disease.
You could say the Eucharist in the form of bread, or under the species of bread, or under the accident of bread.