The biome characterized by permafrost and low biodiversity, dominated by mosses and lichens, is: MCQ with Answer and Explanation

Question
The biome characterized by permafrost and low biodiversity, dominated by mosses and lichens, is:
A. Taiga
B. Savanna
C. Tundra
D. Temperate deciduous forest
Answer: Option C
Solution (By JKExamLibrary)
The tundra biome, found in Arctic and Antarctic regions, has permanently frozen subsoil (permafrost), extremely low temperatures, short growing seasons, and vegetation limited to mosses, lichens, grasses, and dwarf shrubs. Taiga is the boreal coniferous forest, savanna is tropical grassland, temperate deciduous forest has distinct seasons. Tundra is the coldest biome.
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Practice More Biology Questions

Question #1
Which of the following nitrogenous bases is found in RNA but not in DNA?
A. Adenine
B. Cytosine
C. Guanine
D. Uracil
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Correct Answer: Option D

Explanation:
RNA contains uracil instead of thymine found in DNA. In DNA, adenine pairs with thymine; in RNA, adenine pairs with uracil. Adenine, guanine, and cytosine are common to both. Uracil is a pyrimidine base, structurally similar to thymine but lacking a methyl group. This distinction is used in genetic material identification and understanding transcription.
This question belongs to: Science Biology
Question #2
Identify the correct statement about respiration:
A. The primary stimulus for breathing is low oxygen.
B. The diaphragm moves upward during inhalation.
C. Carbon dioxide is transported mainly as bicarbonate ions.
D. External respiration occurs in the tissues.
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Correct Answer: Option C

Explanation:
About 70% CO₂ is carried as bicarbonate. The main stimulus is high CO₂; external respiration is in lungs; diaphragm moves downward (contracts) during inhalation.
This question belongs to: Science Biology
Question #3
The normal human body temperature is about:
A. 35°C
B. 39°C
C. 37°C
D. 40°C
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Correct Answer: Option C

Explanation:
The average normal oral temperature is around 37°C (98.6°F). It is maintained by the hypothalamus through thermoregulation.
This question belongs to: Science Biology
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