Explanation

• Flame cells are specialized excretory organs in flatworms (Planaria (Platyhelminthes)
  • They remove waste and excess water from the body.
  • Called “flame cells” because cilia inside them flicker like a flame.
  • Part of the protonephridial system in invertebrates.

Last verified on 07-02-2026

Explanation

• Imbibition is the process where seeds absorb water, swell, and become metabolically active.
• It is the first step in seed germination.
• Occurs due to osmosis and capillary action.

Explanation

• Plants can respond to various stimuli like light, gravity, and touch.
• The response of plants to touch is called thigmotropism.
• It is commonly seen in climbing plants and vines, which coil around supports.

Last verified on 23-01-2026

Explanation

• Ascorbic Acid is commonly known as Vitamin C.
• It is essential for growth, repair, and maintenance of body tissues.
• Prevents scurvy, a disease caused by Vitamin C deficiency.

Additional information:

Sources of Vitamin C (5):

1. Orange
2. Lemon
3. Guava
4. Strawberry
5. Bell pepper

Functions:

• Antioxidant
• Collagen synthesis
• Strengthens immunity

Last verified on 19-01-2026

Explanation

VORACIOUS means بھوکا

Insatiable means لالچی

Greedy means لالچی

Explanation

Burning magnesium reacts with N₂ to form magnesium nitride (Mg₃N₂).

It also burns in CO₂, breaking it down to MgO and C.

Explanation

Look at the number of distinct digits in each addend: 100 has digits {1,0} → 2 distinct; the other 100 also has 2 distinct.

The code concatenates those counts, so 2 and 2 → 22.

Explanation

Step 1:

Initial movement North. The man starts at a point and walks 3 km towards the North.

After this displacement, he is facing the North direction. 

Step 2:

First turn and movement He turns left from the North direction.

A left turn from North corresponds to the West direction.

He then walks  2 km in this direction. 

Step 3:

Second turn and movement.

While facing West, he turns left again.

A left turn from West corresponds to the South direction.

He walks 3km South, which brings him to the same horizontal level as his starting point. 

Step 4: Final turn and direction

From the South direction, he turns right.

A right turn from South corresponds to the West direction.

He continues to walk straight in this final direction. 

The man is walking in the West direction. 

Explanation

Rule: third number = 2 × (second number) − 4.

Check: for row3 → 2×58 − 4 = 116 − 4 = 112.

Explanation

Pain & Agony, Risk & Danger, Honesty & Integrity are synonyms (similar meaning).

Bondage & Freedom are antonyms (opposite meaning).