Can I remove the lowest sprouts and dead leaves?

Hey there NorthernStar, actually it's a bit late to be doing that but you might as well. it's a bit late, actually you want to be pruning those off say last week, when they're smaller. Doing it now will shock the plant just a tiny bit more that's why. But basically when you do remove them it will force the plant to buff up the upper flower nodes which are better anyway. So to remove them make sure you use something clean , i take a razor blade and just slice them off. Hope this helps ! 🚀

Leaves at the bottom of the plant that receives little light can be pruned. ... Bud sites that are lower down on the plant may be removed so that the plant can focus on the bud sites closer to the top. Dead or dying leaves should be pruned. Hopefully, I answered your question and remember Happy Growing and Free your mind one puff at a time.

absolutely,,, there is no advance in keeing those small branches or tiny flowers, i tend to clean up my plants around 25 percent of the Plant ( from bottom line)

Absolutely dude. Take them off so it wont take energy away from the bigger buds above.