do all living organism ingest food in same way ?justify your answer
Answers
Answer:
The ability to ingest or absorb food is relatively common in nature; only the Kingdom Plantae is completely devoid of organisms that do not ingest or absorb their food, as they make their food internally through the process of photosynthesis. All other organisms rely on external sources of food, with some simply absorbing their food (e.g. fungi and monera) and others having developed complex systems to digest their food (e.g. Animalia). According to the Linnaean classifications of kingdoms, there are four kingdoms of animals that either ingest or absorb their food.
Animalia
The Kingdom Animalia comprises multicelluar organisms that digest their food. The digestion system ranges in complexity. For example, a nematode has only a mouth (where food is initially ingested), an intestine (for extracting nutrients) and an anus (for expelling waste products). In contrast, human beings have highly evolved digestive systems that include the same three basic parts as the nematode, but have several additional features. Food sources for animals vary, as some are carnivorous (eating only other animals), some are herbivores (eating only plants) and others are omnivorous (which means they eat both).
Protista
Kingdom Protista is the only other kingdom that includes some organisms which ingest their food. Protists are single-celled organisms that have their nucleus contained in a membrane. Protists that ingest their food do so through a process known as "phagocytosis," in which animal-like protists (known as "protozoa") envelop their food through a mouth-like structure. All other protists absorb their food, as opposed to ingesting it, with examples being the plant-like protists (such as algae).
Explanation:
Answer:
NO they dont
Explanation:
Various ways in which organisms ingest their food are...
1) Holozoic mode of nutrition.
2) Saprophytic mode of nutrition
3) Heterotrophic mode of nutrition
4) Autotrophic mode of nutrition
5) Parasitic mode of nutrition .
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