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In the domain Eukarya, which kingdom is considered autotrophic?

A) Animalia
B) Plantae
C) Fungi
D) Protista

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Final answer:

Kingdom Plantae consists of multicellular, autotrophic organisms utilizing photosynthesis. In contrast, Animalia is heterotrophic, while Fungi and Protista encompass both autotrophic and heterotrophic members, with autotrophy less prevalent. Plants uniquely excel as primary producers, synthesizing their food through photosynthesis.

Step-by-step explanation:

The Kingdom Plantae comprises multicellular, autotrophic organisms that harness the power of photosynthesis to synthesize their sustenance. Distinguished by their possession of chloroplasts containing chlorophyll, plants convert sunlight into chemical energy, producing sugars crucial for their growth. This autotrophic mode of nutrition sets them apart from the heterotrophic organisms in the Kingdom Animalia, which rely on external sources for nutrition. Meanwhile, the Kingdoms Fungi and Protista encompass a diverse array of both heterotrophic and autotrophic members, although autotrophy is not as predominant as in Plantae. Fungi, for instance, often absorb nutrients from organic matter in their environment, while Protista encompasses a variety of nutritional strategies. Despite this diversity, the hallmark of Plantae lies in their unparalleled ability to independently generate organic compounds through photosynthesis, defining their role as primary producers in ecosystems.

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