Explanation

Leukocytes, or white blood cells, are key components of the immune system that defend the body against infections.

They identify, attack, and destroy harmful pathogens like bacteria and viruses.

Explanation

Red Blood Cells (RBCs) contain hemoglobin, which binds with oxygen and transports it to body tissues.

They are the primary oxygen carriers in the circulatory system.

Explanation

Evaluation is a key component of curriculum as it assesses the effectiveness of teaching and learning.

It helps in determining whether educational goals and objectives are being met.

Explanation

Let's check each pair in the equation:

2x + 3y = 24

{6, 4} → 2(6) + 3(4) = 12 + 12 = 24 ✓

{12, 0} → 2(12) + 3(0) = 24 + 0 = 24 ✓

{0, 8} → 2(0) + 3(8) = 0 + 24 = 24 ✓

{9, -2} → 2(9) + 3(-2) = 18 - 6 = 12 ✗

Explanation

Total = 0.98 + 45.102 + 32.3333 + 31 + 0.00009 = 109.41539

Explanation

The multiplicative identity is the number which, when multiplied by any rational number, leaves it unchanged.

For rational numbers, that number is 1 because a × 1 = a.

Explanation

Pictorial means تصویر

Explanation

Pakistan is strategically located as a link between Central Asia, the Middle East, and South Asia.

It serves as a bridge for economic, cultural, and political connections among Islamic countries in these regions.

Explanation

Convert to a common denominator: 3/8 + 4/2 = 3/8 + 16/8.

Add the fractions: (3 + 16) / 8 = 19/8.

Explanation

The set {0} contains exactly one element, which makes it a singleton set.

A singleton set is defined as a set that has only one element.