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

• Sound waves are mechanical waves and need a medium to travel.
  • They travel fastest in solids, slower in liquids, and slowest in gases.
  • Solid particles are closely packed, allowing rapid vibration transfer.

Last verified on 04-02-2026

Explanation

• Citrus plants belong to the Rutaceae family.
• Includes oranges, lemons, limes, and grapefruits.
• Members are mostly evergreen trees and shrubs.
• Characterized by aromatic leaves and gland-dotted rinds.
• Widely cultivated for fruits and essential oils.

Last verified on 04-02-2026

Explanation

• Hydrogen bonding occurs when hydrogen is covalently bonded to highly electronegative atoms like O, N, or F.
• Present in water (H₂O), ammonia (NH₃), and hydrogen fluoride (HF).
• Responsible for high boiling points, surface tension, and solubility.

Last verified on 04-02-2026