Explanation

T cells are responsible for recognizing and attacking infected cells, particularly those harboring viruses or intracellular bacteria.

B cells primarily target invaders outside of cells by producing antibodies to neutralize pathogens.

Explanation

Given the roots are 1 + √5 and 1 - √5, we can find the quadratic equation using the sum and product of roots.

Step 1: Calculate the sum of roots

Sum of roots = (1 + √5) + (1 - √5) = 2

Step 2: Calculate the product of roots

Product of roots = (1 + √5)(1 - √5) = 1 - 5 = -4

Step 3: Form the quadratic equation

x² - (sum of roots)x + (product of roots) = 0

x² - 2x - 4 = 0

Explanation

The adjectives follow the correct order: opinion → size → age → color → material → noun.

"Charming" (opinion), "little" (size), "old" (age), "white" (color), "stone" (material), followed by "house" (noun).

Explanation

"Ox" is an irregular noun because its plural form is "oxen", not "oxes."

The dish → dishes, chocolate → chocolates, plant → plants follow regular plural rules.

Explanation

In passive voice, the subject receives the action, rather than performing it.

The sentence "The student was praised by the teacher" follows this structure, where "the student" is the receiver of the action.

Explanation

"Children" (plural) changes to "child" (singular).

"Are" (plural verb) changes to "is" (singular verb) to match the subject.

Explanation

A stanza is a grouped set of lines in a poem,

It often separated by a space.

It functions like a paragraph in prose.

Quatrain and sestet are specific types of stanzas based on the number of lines (four and six, respectively).

Explanation

A curriculum provides the structured framework and content for education, outlining what should be taught and learned.

Without a proper curriculum, effective education would be challenging to implement.

Explanation

حروف مقطعات وہ مخصوص حروف ہیں جو قرآن مجید کی ابتدائی سورتوں میں آئے ہیں، جیسے "الم"، "الر"، "حم" وغیرہ۔

ان کا مفہوم واضح نہیں ہے اور ان کی تفصیل پر مختلف تفسیرات کی گئی ہیں۔

Explanation

Pandemic means عالمی وباء

Rife means عالمی وباء