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.
San Juan weather essentials. As with almost all tropical destinations, any time of year is the best time of year to visit San Juan. There are no actual seasons, in that weather is warm and humid year round, and temperatures can be expected to reach the high 70s and low 80s (Fahrenheit) even in what is technically winter. The only thing travelers really need to take into consideration when planning a trip to San Juan is hurricane season. In Puerto Rico, hurricane season starts in June and ends in November. It isnât necessary to avoid visiting during these months - just make sure to remain updated on hurricane warnings and weather reports during the days before your plane departs.