The scientific study of the relationship between organisms and their environment is called:

Which of the following minerals is essential for maintaining fluid balance in the body?

Which of the following is the main cause of muscle fatigue during intense exercise?

The gas exchanged during cellular respiration that is released as a waste product is:

The process by which new species arise through gradual change over time is called:

Which of the following is a common antibiotic derived from a fungus?

Which of the following elements is a key component of the hemoglobin molecule besides iron?

The process by which the body maintains a stable internal environment is called:

The disease caused by the deficiency of protein in diet, especially in children, is called:

Which of the following is the main function of the stomata in plant leaves?

Which of the following is used as a natural pesticide?