Explanation

The primary characteristic of local populations in the same area 

That they are conspecific—meaning they belong to the same species

Same species—and share a defined, contiguous geographic area,

Where they are more likely to interbreed with each other than with individuals from other areas

Last updated 17-02-2026

Explanation

Picric acid is also called 2,4,6-trinitrophenol.

It has three nitro (–NO₂) groups attached to a benzene ring with one hydroxyl (–OH) group.

     NO2

      |

 NO2—C6H2—OH

      |

     NO2

Explanation

Humans cannot synthesize essential fatty acids, particularly Omega-3 (like alpha-linolenic acid) and Omega-6 fatty acids.

They must be obtained from the diet (e.g., fish, flaxseed, walnuts).

Palmitic, oleic, and stearic acids can be produced in the human body

Last updated 17-02-2026

Explanation

Both gymnosperms and angiosperms are seed-producing plants (seed plants).

• Gymnosperms → Seeds are naked (not enclosed in fruit).

• Angiosperms → Seeds are enclosed within fruit.

Thus, they are correlated based on the characteristic of seed production.

Last updated 17-02-2026

Explanation

Explanation

Ichthyology is the study of fish. 

It is a branch of zoology that deals with the biology, taxonomy, behavior, physiology, ecology, and anatomy of various fish species

Additional information:

• Agrostology: Study of Grasses 
• Agronomy: soil management and crop production 
• Odontology: study of teeth 
• Arthrology: Study of joints 
• Nephrology: study of kidneys
• Hematology: Study of blood  
• Dermatology:  Study of skin 

Last updated 17-02-2026

Explanation

Attenuation means reduction in power (strength) of light signal as it travels through an optical fiber.

It is mainly caused by:

• Absorption

• Scattering

• Bending losses

It is measured in decibels per kilometer (dB/km).

Last updated 15-feb-2026

Explanation

Multiple repeaters in a communication satellite are called transponders.

These devices are essential for receiving weak signals from Earth, amplifying them, changing their frequency, and retransmitting them back

Allowing the satellite to handle multiple communication channels simultaneously.

Last updated 15-feb-2026

Explanation

A complete graph is a type of graph in which every pair of distinct vertices (nodes) is connected by a unique edge.

If a graph has n nodes, a complete graph has n(n−1)/2 edges.

For example:

3 nodes → 3 edges

4 nodes → 6 edges

This ensures that all nodes are fully connected.

Last updated 15-feb-2026

Explanation

• Pomology is the branch of horticulture that deals with the study, cultivation, and production of fruits.
• Includes fruit breeding, harvesting, storage, and marketing.
• Examples of fruits studied: apple, mango, citrus, banana, grapes.

Last verified on 31-01-2026