A Level Biology Practice Exam

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Which organs are included in the reproductive system?

Heart and lungs
Gonads and uterus
Kidneys and bladder
Pancreas and liver

The correct answer is: Gonads and uterus

The reproductive system is primarily composed of organs that are directly involved in the processes of reproduction. In humans, this includes the gonads (testes in males and ovaries in females), which are responsible for producing gametes (sperm and eggs, respectively) and hormones that regulate reproductive functions. Additionally, the uterus is a crucial organ in females, providing the environment necessary for a fertilized egg to develop into a fetus during pregnancy. In contrast, the other options list organs that serve different primary functions. The heart and lungs belong to the circulatory and respiratory systems, respectively. The kidneys and bladder are integral to the urinary system, responsible for filtering waste and regulating fluid balance. The pancreas and liver are part of the digestive system, aiding in the processing of nutrients and the regulation of metabolism. Therefore, the inclusion of gonads and the uterus clearly defines the components of the reproductive system.