The type of ecological pyramid that can be inverted in a parasitic food chain is the: MCQ with Answer and Explanation

The type of ecological pyramid that can be inverted in a parasitic food chain is the:
A. Pyramid of energy
B. Pyramid of productivity
C. Pyramid of numbers
D. Pyramid of biomass
Answer: Option C
Solution (By JKSSB Mock Tests)
A pyramid of numbers can be inverted when a single tree (producer) supports many herbivores, or many parasites live on a single host. Energy pyramids are always upright. Biomass pyramid can be inverted in aquatic systems.

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Practice More Biology Questions

Question #1
Which of the following is a high-yielding exotic breed of cattle used in dairy farming?
A. Holstein-Friesian
B. Gir
C. Sahiwal
D. Red Sindhi

Correct Answer: Option A


Explanation:
Holstein-Friesian (often just called Holstein) is a high-yielding exotic breed of dairy cattle originating from the Netherlands. They are known for their high milk production, although the milk has a lower fat content compared to some indigenous breeds. Sahiwal, Gir, and Red Sindhi are important indigenous (Indian) cattle breeds known for their disease resistance and heat tolerance.

This question belongs to: Science Biology
Question #2
In a eukaryotic cell, the site of ribosomal RNA synthesis is the:
A. Mitochondria
B. Golgi body
C. Cytoplasm
D. Nucleolus

Correct Answer: Option D


Explanation:
The nucleolus is a dense spherical structure within the nucleus where ribosomal RNA (rRNA) is transcribed and ribosomal subunits are assembled. They then exit to the cytoplasm. The cytoplasm is the site of translation. Mitochondria have their own 70S ribosomes but their rRNA is synthesized within the organelle. Golgi modifies proteins.

This question belongs to: Science Biology
Question #3
In the human circulatory system, the 'Hepatic portal vein' carries blood from the digestive tract to the:
A. Lungs
B. Heart
C. Kidneys
D. Liver

Correct Answer: Option D


Explanation:
The hepatic portal vein is a unique blood vessel in the circulatory system that carries nutrient-rich, but potentially toxin-laden, blood from the gastrointestinal tract (stomach, intestines), spleen, and pancreas directly to the liver, rather than to the heart. This allows the liver to process absorbed nutrients, store glycogen, detoxify harmful substances, and regulate blood composition before the blood enters the systemic circulation via the hepatic veins to the inferior vena cava.

This question belongs to: Science Biology