The process of independent assortment refers to

The process of Independent assortment refers to the orientation of homologous chromosomes during metaphase I

Independent assortment is a law, which is also known as Mendel's second law. It states that when two or more traits are inherited, different hereditary factors assort individually throughout gamete production, and this gives individual traits equal chance of occurring together.

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

answer; ///(b) it is composed of four protein chains and four heme groups;