The heart is a muscular organ responsible for pumping blood throughout the body. It delivers oxygen and nutrients to tissues while removing carbon dioxide and other waste products.
To convert a fraction to a decimal, divide the numerator by the denominator. In this case, 3 divided by 4 equals 0.75.
Red blood cells contain hemoglobin, a protein that binds oxygen in the lungs and transports it to tissues throughout the body.
The nucleus is the control center of the cell and contains DNA, which holds the genetic instructions used for growth, development, and cell function.
The digestive system breaks down food into nutrients that the body can absorb and use for energy, growth, and repair.
25% means one quarter. One quarter of 80 equals 20. You can also calculate it by multiplying 80 by 0.25.
The kidneys filter waste products and excess fluid from the blood to form urine. They also help regulate blood pressure and electrolyte balance.
Oxygen is required by cells to produce energy through cellular respiration. Without oxygen, cells cannot efficiently generate ATP.
Ligaments are strong connective tissues that connect bones to other bones and help stabilize joints.
Vitamin D is synthesized in the skin when exposed to sunlight and plays an essential role in calcium absorption and bone health.
The skin is the largest organ of the body and serves as a protective barrier against pathogens, regulates temperature, and prevents water loss.
The cerebellum plays a major role in coordinating voluntary movements, maintaining posture, and controlling balance.
Body temperature is commonly measured in degrees Celsius or Fahrenheit, depending on the country and healthcare system.
The gallbladder stores and concentrates bile produced by the liver. Bile helps digest fats in the small intestine.
Ball and socket joints, such as the shoulder and hip, allow movement in multiple directions including rotation, making them the most flexible joints in the body.