Which mosquito borne disease is characterized by high fever joint pain and a distinctive skin rash?

Which chemical element has the highest melting point of all pure metals, used in light bulb filaments?

Which photoreceptor cells in the eye are responsible for colour vision and function best in bright light?

Which biological process allows water to move across a cell membrane from a region of low solute concentration to high concentration?

Which soft tissue found inside bones is responsible for producing new blood cells?

Which enzyme present in saliva begins the digestion of starch in the mouth?

Which type of joint is found in the skull where bones are fixed together and allow no movement?

Which term describes the process of a solid changing directly to a gas without passing through the liquid state?

Which blood vessels carry deoxygenated blood back to the heart from body tissues?

Which type of energy is stored in the chemical bonds of food and fuels?

Which natural phenomenon explains why a compass needle always points toward magnetic north?