the most anterior portion of the frontal lobe of each of the brain's cerebral hemispheres. It acts in attention, planning, and memory and is separated into a dorsolateral region and an orbito-frontal region.PREFRONTAL CORTEX: The prefrontal cortex is commonly referred to as the frontal association area..he most anterior portion of the frontal lobe of each of the brain's cerebral hemispheres. It acts in attention, planning, and memory and is separated into a dorsolateral region and an orbito-frontal region.
Growing Seedless Watermelons. If youâve enjoyed a delicious seedless watermelon, you might wonder how they are grown. It starts by treating watermelon seedlings with a chemical that makes the plant have 4 times (4X) their normal number of chromosomes. After planting, when this watermelon flowers, it receives pollen from a nearby normal (2X) watermelon. The result is a fruit that has seeds that are 3X .
All seedless watermelons are hybrids and take the longest time to mature. The seeds germinate between seven and 14 days and they must be kept between 75 and 85 degrees. It's also necessary to plant seedless watermelons next to seeded watermelons, as the hybrid varieties need a pollinator.or a healthy seedling to sprout, watermelon seeds must be planted in temperatures between 70 and 95 degrees. Position the seeds no more than 5 feet away from each other, so the seedlings have room to mature into large fruit.