Explanation

• A group of wolves is called a Pack.

Additional information:

• Sheep → Flock
• Cattle/Elephants → Herd
• Lions → Pride
• Fish → School (or Shoal)

Last verified on 15-07-2026

Explanation

• O⁻ (O Negative) is the universal donor blood group.
• It can be transfused to A, B, AB, and O blood groups.
• O⁻ blood lacks A, B, and Rh (D) antigens.

Additional information:

• Universal Recipient: AB⁺ (AB Positive)
• ABO Blood Groups: A, B, AB, O
• Rh Types: Positive (+) and Negative (−)
• Total Common Blood Groups: 8 (A⁺, A⁻, B⁺, B⁻, AB⁺, AB⁻, O⁺, O⁻)

Last verified on 14-07-2026

Explanation

• Endocrinology is the scientific study of hormones and the endocrine system.
• It deals with glands that produce hormones to regulate body functions.
• Hormones control growth, metabolism, reproduction, and blood sugar.
• The endocrine system helps maintain the body's internal balance (homeostasis).

Additional information:

• Neurology → Study of the nervous system
• Cardiology → Study of the heart

Verified & Updated

Explanation

• Power is the rate of doing work or the rate at which energy is transferred.
• It is a scalar quantity (has magnitude only).
• It shows how quickly work is done.
• The SI unit of power is the Watt (W).
• 1 Watt = 1 Joule per second (1 W = 1 J/s).

Additional information:

• Formula: P = W/t = E/t
• SI Base Unit: kg·m²·s⁻³
• Dimension Formula: ML²T⁻³
• James Watt is the scientist after whom the Watt unit is named.

Last verified on 09-07-2026

Explanation

• Geopolitics is the study of how geography influences politics and international relations.
• It examines how location, borders, resources, and strategic position affect a country's foreign policy.
• The Swedish political scientist Rudolf Kjellén introduced the term "Geopolitics" in 1899.

Last verified on 08-07-2026