Nwhat phase of meiosis are tetrads of homologous pairs lined up along the center of the cell and attached to the spindle fibers?
answer
anaphase i
anaphase ii
metaphase i
metaphase ii

Option C, Metaphase I

Explanation:

During the metaphase I of the cell division process, the bivalent chromosomes that are attached to the fully formed meiotic spindle arrange themselves at the metaphase plate.

These chromosomes arrange themselves at equal distance on the metaphase plate and also during this phase the centrioles lies at the opposite poles of the cell. The spindle fibre at one end then attaches to one chromosome of each pair while the  spindle fibre at opposite end  attaches to the homologous chromosome

Hence, option C is correct

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.