
★ Circulation and Excretion Quiz
The basic functional unit of human kidney is
A. Henlé’s loop
B. Nephron
C. Nephridia
D. Pyramid
Select your answer:

Topics:
Brain, Neurons and The Nervous System Heart Structure and Double Circulation The nervous system & brain Skin Appendages Blood types and Blood Components Mitosis Blood and Bones Circulatory & Respiratory DNA Structure and Function Inheritance Integumentary and Musculoskeletal Systems Benefits of Physical Activity Orthopedic Surgeon Circulatory, Artery, Vein - basics VirusOther quiz:
Organ Systems › ViewWhich system breaks down food and absorbs the nutrients?
A. respiratory system
B. endocrine system
C. excretory system
D. digestive system
Food › View
Calcium, Sodium, and Iron are examples of ________?
A. Minerals
B. Vitamins
C. Fruits
D. Fiber