Holozoic Mode of Nutrition
Holozoic nutrition is a type of nutrition in which organisms ingest complex organic substances, digest them internally, and absorb the resulting nutrients. This mode of nutrition is commonly seen in animals.

Key Points:
- Ingestion: The process begins with the ingestion of food by the organism. This food can be in the form of plants, other animals, or organic matter.
- Digestion: Once the food is ingested, it undergoes the process of digestion. This involves breaking down the complex organic substances into simpler molecules that can be absorbed by the organism.
- Absorption: After digestion, the nutrients are absorbed by the organism through specialized structures such as the intestines. These nutrients are then utilized by the organism for energy, growth, and repair.
- Egestion: Any undigested or waste material is expelled from the organism through a process called egestion.

Examples:
- Humans: Humans exhibit holozoic nutrition by consuming a variety of foods, digesting them in the digestive system, and absorbing the nutrients for energy and growth.
- Lions: Lions are carnivorous animals that hunt and consume other animals for their nutrition. They digest the meat in their digestive system to obtain essential nutrients.
- Amoeba: Amoeba is a single-celled organism that exhibits holozoic nutrition by engulfing food particles through its cell membrane, forming a food vacuole, digesting the food, and absorbing nutrients.
In conclusion, holozoic nutrition is an essential process for obtaining nutrients in animals through ingestion, digestion, absorption, and egestion.