Which body cavity houses the organs responsible for digestion?

A. Organism: An organism is the complete living being, composed of multiple organ systems working together. It is not the basic structural or functional unit.

B. Organ: An organ is a collection of tissues that performs a specific function, but it is made up of cells, which are the fundamental units.

C. Tissue: Tissue is a group of similar cells performing a common function. While important, tissues are composed of cells and not the most basic unit.

D. Cell: The cell is the smallest structural and functional unit of life. It carries out essential processes such as metabolism, energy production, and reproduction, forming the foundation of all living organisms.

A. Photoreceptors: Photoreceptors are specialized cells in the retina that detect light and color, playing a role in vision. They do not respond to temperature changes.

B. Chemoreceptors: Chemoreceptors detect chemical changes in the environment or body, such as oxygen, carbon dioxide, and pH levels. They are not involved in sensing temperature.

C. Thermoreceptors: Thermoreceptors are sensory receptors located in the skin and hypothalamus that respond to changes in temperature. They allow the body to perceive warmth and cold and help regulate thermoregulation.

D. Mechanoreceptors: Mechanoreceptors respond to mechanical stimuli such as pressure, touch, vibration, and stretch. They do not detect temperature changes.