Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. In fact, each species of plants and animals has a set number of chromosomes. A fruit fly, for example, has four pairs of chromosomes, while a rice plant has 12 and a dog, 39.
Quick Answer. Frozen grapes are best if used between 10 and 12 months. Although they are best when used within a year of freezing, frozen grapes kept frozen at 0-degrees Fahrenheit are safe to eat indefinitely. Keep Learning.
Harvested pumpkins have a long shelf life when placed in a cool, dry area. Humidity shortens storage lifespan, and shelf life also decreases as temperature increases. Ripe, unblemished pumpkins last for up to three months if in a room that's between 50 and 55 degrees Fahrenheit. If you place pumpkins in average humidity of 50 to 60 percent in cool room at 45 to 50 degrees, they can be stored for three to six months.