Answer:
The Paramecium reproduce asexually. You can tell because there is only one needed to reproduce.
An endoskeleton of calcified cartilage
If the bill is counterfeit and the paper is wood-based, the iodine in the pen solution will react with the starch and leave a dark brown or black mark.
The best answer here is they show seasonal difference in flowering. if they self pollinated they could still interbreed assuming they flower in the same seasons
