Animal Excretory System
Biology ⇒ Animal Biology
Animal Excretory System starts at 9 and continues till grade 12.
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Describe how the excretory system helps maintain homeostasis in animals.
Describe the process of ultrafiltration in the nephron.
Describe the role of antidiuretic hormone (ADH) in the excretory system.
Describe the role of the loop of Henle in the nephron.
Explain the difference between excretion and egestion.
Explain the main function of the excretory system in animals.
Explain why aquatic animals can excrete ammonia directly, while terrestrial animals usually convert it to urea or uric acid.
Explain why birds excrete uric acid instead of urea.
Name the blood vessel that brings blood to the kidneys for filtration.
Name the organ that stores urine before it is excreted from the body.
Name two nitrogenous wastes excreted by animals.
What is the main excretory product of reptiles?
What is the main nitrogenous waste excreted by mammals?
A desert animal produces very concentrated urine. Explain the physiological adaptations in its excretory system that allow this, and why these adaptations are important for survival in its environment.
A patient has a damaged glomerulus in the kidney. Predict and explain the possible effects on urine composition and overall body health.
Compare and contrast the excretory systems of insects and annelids, focusing on the structure and function of their main excretory organs.
Explain how the excretory system contributes to the regulation of blood pressure in mammals.
A marine fish lives in a salty environment and tends to lose water by osmosis. Describe two adaptations in its excretory system that help it maintain water balance.
Describe how the excretory system of freshwater fish differs from that of marine fish in terms of urine production and salt regulation.
Explain how the structure of the nephron enables selective reabsorption and secretion of substances during urine formation.
