Honestly, we could come up with reasons all day, but the simple fact is that eukaryotic cells are up first. C'est la vie. Eukaryotic Cell Structure and Function A cell is defined as eukaryotic if it has a membrane-bound nucleus. Any organism composed of eukaryotic cells is also considered a eukaryotic organism. Case in point: you. Oh, and all other people, too. Biologists do not know of any organism that is composed of both eukaryotic and prokaryotic cells.
Best Time to Visit Cuba. The best time to visit Cuba is between December and April. The weather at this time is very pleasant and dry. The temperature at night can even drop down to below 20 degrees in these months. The tourist peak season runs from December to April, peaking around Christmas and on Easter weekend.
At night, the temps tend to dip down into the 70s and 60s, and since it can get cooler on occasions, you will want to grab a sweater or jacket when packing. In general, winter is considered to be the best time to travel to Playa del Carmen. It is a particularly dry season, which only lends to the popularity of winter visits. Spring: Spring can be a fantastic time to visit Playa del Carmen. The days are warm and sunny, and should you be planning on doing things like scuba diving, the Caribbean Sea stays calm and clear.