Q21. Which kingdom includes organisms that are primarily single-celled, prokaryotic, and exhibit diverse metabolic capabilities such as nitrogen fixation, fermentation, and photosynthesis?
a) Animalia
b) Plantae
c) Fungi
d) Monera
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Correct Answer: d) Monera
Explanation: The kingdom Monera consists of single-celled prokaryotic organisms, including bacteria and cyanobacteria. These organisms exhibit diverse metabolic capabilities crucial for various ecological processes.
Q22. Organisms in which kingdom are characterized by their ability to synthesize their own food through photosynthesis, possess chloroplasts, and are often found in aquatic environments?
a) Animalia
b) Plantae
c) Protista
d) Fungi
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Correct Answer: c) Protista
Explanation: Some members of the kingdom Protista, such as algae, are photosynthetic organisms with chloroplasts. They are often found in aquatic environments and play essential roles in aquatic ecosystems.
Q23. Which kingdom encompasses organisms that are primarily multicellular, heterotrophic, and exhibit absorptive nutrition by secreting enzymes to break down organic matter externally?
a) Animalia
b) Plantae
c) Fungi
d) Protista
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Correct Answer: c) Fungi
Explanation: Fungi are heterotrophic organisms that obtain nutrients through absorptive nutrition. They secrete enzymes to break down complex organic matter externally and absorb the resulting simpler compounds.
Q24. Organisms in which kingdom are characterized by their ability to ingest food, possess specialized tissues and organs, and exhibit complex behaviors?
a) Monera
b) Plantae
c) Fungi
d) Animalia
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Correct Answer: d) Animalia
Explanation: Animals are multicellular, eukaryotic organisms belonging to the kingdom Animalia. They are heterotrophic and obtain nutrients through ingestion. Animals possess specialized tissues and organs for various functions and exhibit complex behaviors.
Q25. Which kingdom includes organisms that are primarily multicellular, photosynthetic, and often have cell walls composed of cellulose or other polysaccharides?
a) Animalia
b) Plantae
c) Fungi
d) Protista
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Correct Answer: b) Plantae
Explanation: Plants are multicellular, photosynthetic organisms belonging to the kingdom Plantae. They possess chloroplasts for photosynthesis and cell walls composed of cellulose or other polysaccharides for structural support.
Q26. Organisms in which kingdom are characterized by their ability to move by means of cilia, flagella, or pseudopodia, and they exhibit diverse forms such as amoebas, paramecia, and euglenas?
a) Animalia
b) Plantae
c) Fungi
d) Protista
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Correct Answer: d) Protista
Explanation: Protists are diverse eukaryotic organisms belonging to the kingdom Protista. They exhibit various forms of locomotion, including ciliary movement, flagellar propulsion, and pseudopodial crawling.
Q27. Which kingdom encompasses organisms that are primarily multicellular, eukaryotic, and obtain nutrients through ingestion and digestion in a central digestive cavity?
a) Monera
b) Plantae
c) Fungi
d) Animalia
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Correct Answer: d) Animalia
Explanation: Animals are multicellular, eukaryotic organisms that obtain nutrients through ingestion and digestion in a central digestive cavity. They exhibit diverse forms and modes of feeding.
Q28. Organisms in which kingdom are primarily single-celled, eukaryotic, and exhibit diverse metabolic capabilities such as photosynthesis, ingestion, and absorption?
a) Animalia
b) Plantae
c) Fungi
d) Protista
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Correct Answer: d) Protista
Explanation: Protists are single-celled eukaryotic organisms belonging to the kingdom Protista. They exhibit diverse metabolic capabilities, including photosynthesis, ingestion, and absorption.
Q29. Which kingdom includes organisms that are primarily multicellular, heterotrophic, and obtain nutrients through absorption of decomposed organic matter?
a) Plantae
b) Animalia
c) Fungi
d) Protista
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Correct Answer: c) Fungi
Explanation: Fungi are multicellular, heterotrophic organisms belonging to the kingdom Fungi. They obtain nutrients through absorption of decomposed organic matter and play critical roles in nutrient cycling and decomposition.
Q30. Organisms in which kingdom are characterized by their ability to synthesize their own food through photosynthesis, possess chloroplasts, and exhibit diverse forms such as algae and seaweeds?
a) Animalia
b) Plantae
c) Fungi
d) Protista
Correct Answer: d) Protista
Explanation: Some members of the kingdom Protista, such as algae and seaweeds, are photosynthetic organisms with chloroplasts. They exhibit diverse forms and are primary producers in aquatic ecosystems.