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 .
Tip for Growing Watermelons. Plant watermelons after all danger of frost have passed, because they cannot withstand even a light frost. Watermelons need good air circulation, so space them about 6 to 12 feet apart. Giving the melons enough space and sun keeps them dry and helps to prevent disease.ip for Growing Watermelons. Plant watermelons after all danger of frost have passed, because they cannot withstand even a light frost. Watermelons need good air circulation, so space them about 6 to 12 feet apart. Giving the melons enough space and sun keeps them dry and helps to prevent disease.