The process of cell division that produces four haploid daughter cells is: MCQ with Answer and Explanation

Explanation:
Vaccination (immunization) involves administering killed or attenuated pathogens, or their antigens, to induce active artificial immunity without causing disease. It primes the immune system to produce memory cells. Antibiosis is inhibition by another organism, immunotherapy treats disease by modulating immune response, chemotherapy uses drugs against cancer or microbes.

Explanation:
Bile is synthesized by hepatocytes of the liver and stored and concentrated in the gall bladder. It contains bile salts (sodium glycocholate and taurocholate) that emulsify fats, aiding lipase action. Bile also contains bile pigments (bilirubin, biliverdin) from hemoglobin breakdown. Pancreas secretes pancreatic juice with digestive enzymes. Gall bladder only stores bile, doesn't produce it.

Explanation:
The Islets of Langerhans are the endocrine (hormone-producing) portions of the pancreas. They are clusters of cells scattered throughout the pancreatic tissue, comprising about 1-2% of the pancreas's mass. They contain several cell types, primarily alpha cells (secreting glucagon), beta cells (secreting insulin), delta cells (secreting somatostatin), and F cells (secreting pancreatic polypeptide). These hormones are crucial for regulating blood glucose levels.