Explanation

"He is vain of his beauty."

The correct preposition to use with "vain" (meaning overly proud) is "of."

"Vain of" means proud of (in a conceited way).

Explanation

ATTAINMENI "حصول" یا "کامیابی"

ACHIEVEMENT کامیابی

Explanation

ARROGANT مغرور

CONCEITED   مغرور

Explanation

AMPLE کافی

PLENTY OF کافی

Explanation

APPLIES  لاگو ہوتا ہے۔

Involves شامل ہے۔

Explanation

ACCOMPLISHMENT تکمیل

Achievement کامیابی

Explanation

Affluent  دولت مند, متمول

Wealthy دولت مند

Explanation

Acetyl Co-A is the first carbon compound that enters the Krebs cycle, combining with oxaloacetate to form citrate.

It is produced from pyruvate during the link reaction before entering the cycle.

Explanation

Oxidative phosphorylation is the process of ATP synthesis using energy from electrons transferred through the electron transport chain in the presence of oxygen.

It occurs in the mitochondria.

It is the main source of ATP in aerobic respiration.

Explanation

Choanocytes, also called collar cells, are flagellated cells found in parazoans (sponges).

They help in capturing food particles and aiding digestion by creating a water current.