Explanation

Echinoderms (such as starfish, sea urchins, and sea cucumbers) are invertebrates because they lack a backbone.

They have a unique water vascular system and radial symmetry.

Explanation

Explanation

Explanation

Explanation

To convert the binary number (111)₂ to decimal:

(111)₂ = 1 × 2² + 1 × 2¹ + 1 × 2⁰

= 1 × 4 + 1 × 2 + 1 × 1

= 4 + 2 + 1

= 7

Explanation

"That" is used here as a demonstrative determiner, specifying which one is being referred to.

That means وہ

Explanation

Explanation

Explanation

جو نہاری کھائے گا سو یاد رہے گا۔ دیئے گئے جملے میں خط کشیدہ لفظ حروف شرط کہلاتا ہے۔

Explanation

The sum of the interior angles of a quadrilateral is 360°.
Since 1 right angle = 90°, the sum equals 4 right angles (4 × 90° = 360°).