★ Body Systems Quiz
What organ decides when you breathe?
A. The lungs
B. The brain
C. The stomach
D. Nerves
Select your answer:
Topics:
Trichology Metabolism Factors that Affect Health and Wellness Coronary Heart Diseases Brain and Nervous System The Nervous System and The Senses -ology Nutrition & Wellness Biotechnology SPED Law-lympics Medical Vocabulary Protozoan Diseases Hematologic System Cell Structure and Functions Enzymes and Metabolic PathwaysOther quiz:
Cell Structure and Function › Viewassist in Movement
A. Muscle Tissue
B. Nerve Tissue
C. Connective Tissue
Embryology › View
In the the third embryonic stage (bottom row), mammal embryos _____
A. have more characteristics in common with each other than with reptiles or birds.
B. are still hard to tell from reptiles and birds.
C. have the same features as fish, reptiles, and birds.
D. do not have tails.