GENERAL HISTOLOGY

Detailed explanation-1: -The most important organs of the excretory system are the kidneys (for removal of liquid wastes) and the large intestine (for solid wastes). The major organs for removing liquid waste are the kidneys, which filter the blood. After filtration, wastes such as urea, salts, and excess water pass into the collecting ducts.

Detailed explanation-2: -The large intestine eliminates solid wastes that remain after the digestion of food. The liver breaks down excess a mino acid s and toxins in the blood. The skin eliminates excess water and salts in sweat. The lungs exhale water vapor and carbon dioxide.

Detailed explanation-3: -The body expels waste products from digestion through the rectum and anus. This process, called defecation, involves contraction of rectal muscles, relaxation of the internal anal sphincter, and an initial contraction of the skeletal muscle of the external anal sphincter.

Detailed explanation-4: -All the nitrogenous and solid wastes are stored by different organisms for a certain period in certain body organs such as the kidneys and the intestines, after which they are eliminated from the body. So, the correct option is ‘True’.

Detailed explanation-5: -The bean-shaped kidneys filter waste products out of the bloodstream and dispose of them by creating urine.