Identify the correct statement about evolution: MCQ with Answer and Explanation

Explanation:
The nucleolus makes rRNA and assembles ribosomal subunits. Nucleus has a double membrane, is present in eukaryotes, and is the site of DNA replication.

Explanation:
The epiglottis is a leaf-shaped elastic cartilage that covers the glottis (opening of the larynx) during swallowing, directing food into the esophagus and preventing it from entering the trachea. The thyroid cartilage forms the Adam's apple, the cricoid is ring-shaped below, and arytenoids are involved in vocal cord movement.

Explanation:
Bile is continuously synthesized by hepatocytes in the liver. It contains bile salts, bile pigments, cholesterol, and phospholipids. The gall bladder merely stores and concentrates bile, releasing it upon eating. The pancreas produces digestive enzymes, duodenum is part of the small intestine. Bile emulsifies fats.