Which animal is known for producing blue blood because of a copper-containing respiratory pigment?
What gives human blood its characteristic red color?
Which part of a plant is mainly responsible for absorbing water and minerals from the soil?
What is the largest organ in the human body?
Which animal can taste with its feet?
Which part of a cell is often described as its 'powerhouse' because it produces much of the cell's usable energy?
Which living organism is famous for being able to survive extreme dehydration by entering a dormant state?
What is the main reason leaves are usually green?
