Why is nucleus an organelle?

Is seaweed an omnivore or herbivore? What replaces CNh 86546614? Does 12 killilters equals to 12000 liters? What does the map look like of the seven countries? Can experience be measured? Which cellular structure is present in all prokaryotic cells? Do placentals have a four chambered heart? How many pairs of cranial nerves present in shark fishes? What country is 25 degrees north latitude and 0 degrees longitude? What is the name of a dye-yielding plant? What are the organs that work together to digest food? What are the latitude belts? What happens when a stimulus activates a receptor? What is wax taper and the physical reaction to a firework? If 50 grams of a substance with temperature 20c and specific heat of 2 is mixed with 200 grams of water which has a temperature of 40c what will be equilibrum temperature of the mixture? Why do I chew tissue? Why do scientists measure biodiversity at a community level? What happens to p waves at a depth of 2 500 km? Which animal produces less pepsin a herbivore or carnivore why? A nonmetal in the same group of pb?