Question

which of the following secretes enzymes that aid in chemical digestion?
a. pancreas
b. spleen
c. gallbladder
which of the following structures is found in humans but is absent in pigs?
a. epiglottis
b. appendix
c. cecum

Explanation:

1. The pancreas secretes enzymes like amylase, lipase, and proteases that aid in chemical digestion of carbohydrates, fats, and proteins respectively. The spleen is part of the immune - system and filters blood, and the gallbladder stores and releases bile which aids in fat digestion but does not secrete digestive enzymes.
2. The appendix is a small pouch attached to the cecum. Humans have an appendix, while pigs do not. The epiglottis is present in both humans and pigs to prevent food from entering the trachea during swallowing, and the cecum is present in both, being part of the large intestine.

Answer:

1. A. Pancreas
2. B. Appendix