Holozoic Nutrition: Internal Food Breakdown
The question describes a mode of nutrition where organisms ingest (take in) whole food material and then digest (break it down) internally.
Understanding Holozoic Nutrition
This process is characteristic of holozoic nutrition. It involves several steps:
- Ingestion: Taking solid food into the body.
- Digestion: Breaking down complex food into simpler substances.
- Absorption: Absorbing the digested nutrients.
- Assimilation: Using the absorbed nutrients.
- Egestion: Removing undigested waste.
This type of nutrition is common in many animals, including humans.
Why Other Options Are Incorrect
- Autotrophic nutrition: Organisms produce their own food using light or chemical energy (e.g., plants, algae).
- Saprophytic nutrition: Organisms feed on dead or decaying organic matter (e.g., fungi, some bacteria).
- Parasitic nutrition: Organisms obtain nutrients from a living host, harming it in the process (e.g., tapeworms, some fungi).
Therefore, the intake and internal breakdown of whole food material directly matches the definition of holozoic nutrition.
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