Answer: c. nephron
Explanation: The nephron is the functional unit of the kidney, which actively filters blood and generates urine. The nephron is made of the renal corpuscle and renal tubule. Cortical nephrons are located within the renal cortex, whilst juxtamedullary nephrons are observed inside the renal cortex near the renal medulla.
Answer:
embryology is a field they studies and examines homologous structures
An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide
