Explanation

• The notochord is a flexible, rod-shaped structure that is present during the embryonic stage of all chordates
• It provides support and defines the primitive axis of the body.
• This characteristic is a key feature that distinguishes chordates from non-chordates.

Last verified on 06-11-2026

Explanation

• Leeches are segmented worms belonging to phylum Annelida.
• Their bodies show metameric segmentation.
• They possess a true coelom, although it is reduced in leeches.

Last verified on 06-11-2026

Explanation

• Radula is a ribbon-like feeding organ found in most molluscs.
• It contains rows of tiny teeth used to scrape or cut food.
• Bivalves generally lack a radula.

Last verified on 06-11-2026

Explanation

• Malpighian tubules remove nitrogenous wastes from the insect's body.
• They help maintain water and salt balance.
• They are connected to the digestive tract.

Last verified on 06-11-2026

Explanation

Explanation

Use the set formula: 

Students who study CS or Math = CS + Math - Both  

= 55 + 50 - 10  

= 95 students

Students who study neither = Total students - Students who study CS or Math  

= 100 - 95  

= 5 students

Last verified on 02-09-2026

Explanation

Given:

1. P > Q

2. R > P

3. S < Q

4. T > P

5. R > T

Combine:

From (1) and (2): R > P > Q

From (3): P > Q > S, so R > P > Q > S

From (4) and (5): R > T > P

So we have:

R is taller than P, Q, S, and T.

Both Q and T are shorter than R.

Answer: R is definitely the tallest.

Last verified on 17-10-2026

Explanation

SISTER = 535301

S = 5, I = 3, T = 3, E = 0, R = 1

UNCLE = 84670

U = 8, N = 4, C = 6, L = 7, E = 0 (E = 0 matched)

BOY = 129

B = 1, O = 2, Y = 9

Now SON

S = 5

O = 2

N = 4

SON = 524

Last verified on 20-10-2026

Explanation

Logic: +4

B = 2nd letter

F = 6th letter (2+4)

J = 10th letter (6+4)

N = 14th letter (10+4)

Next = 14+4 = 18th letter = R

Last verified on 11-10-2026

Explanation

• Alleviate means کسی چیز کو کم شدید یا برداشت کرنا آسان بنانا، خاص طور پر درد یا مسائل
• Reduce means کسی چیز کو کم شدید یا برداشت کرنا آسان بنانا، خاص طور پر درد یا مسائل

Last verified on 18-05-2026