Explanation

The perianth is the outer part of the flower, made up of the calyx (sepals) and corolla (petals).

It protects the inner reproductive parts.

It may also help attract pollinators.

Explanation

The substance with the most moles is 3.8 g of H2O (0.211 moles).

Therefore, it has the largest number of molecules. 

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

AMPLE کافی

PLENTY OF کافی

Explanation

Crystal lattices are classified into seven crystal systems based on their unit cell geometry.

These include:

1. Cubic
2. Tetragonal
3. Orthorhombic
4. Monoclinic
5. Triclinic
6. Hexagonal
7. Rhombohedral (Trigonal)

Explanation

If I am here, I shall come to you.

This is a first conditional sentence, used to express a real or possible situation in the future.

The structure is:

If + present tense, shall/will + base verb

So:

"If I am here" (present tense)

"I shall come to you" (future action)

Explanation

Sarcina is a bacterial arrangement formed when cocci divide in three perpendicular planes, resulting in a cubical packet of 8 cells.

It is commonly seen in some Gram-positive cocci like Sarcina ventriculi.

Explanation

The aperture refers to the diameter of the lens through which light enters.

It controls the amount of light reaching the lens, affecting brightness and focus.

Explanation

ATTAINMENI "حصول" یا "کامیابی"

ACHIEVEMENT کامیابی

Explanation

ACCOMPLISHMENT تکمیل

Achievement کامیابی