What is the primary function of the respiratory system?

Which part of the brain controls balance and coordination?

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

Which gas is most abundant in the Earth's atmosphere?

Which gland is known as the master gland of the human body?

What is the term for animals without a backbone?

Which type of cell division produces two genetically identical daughter cells for growth and repair?

Which everyday item uses a bimetallic strip that bends when heated to control temperature in older thermostats?

Which everyday chemical process explains why sliced apples turn brown after being exposed to air?

Which simple machine uses a grooved wheel and rope to lift heavy objects with reduced effort?

Which device converts electrical energy into light energy using a glowing filament?