Select your answer:
Topics:
Bone Shapes & Long Bone Anatomy Vision and Light Parts of the Skin Gastroenterology Population Ecology Heart Anatomy Endocrinology Physiology Hematology ology & phobia Cell Membrane and Transport Bacteria & Viruses DNA Structure, Replication, Proteins Economic importance of Bacteria ShoulderOther quiz:
Nervous System › ViewWhat connects your appendages to your spinal cord?
A. Voluntary Muscles
B. Involuntary Muscles
C. Spinal Cord
D. Nerves
Bacterial Growth and Culturing Conditions › View
What is the role of nitrogen-fixing bacteria in the nitrogen cycle?
A. They fix carbon dioxide into organic molecules
B. They fix nitrogen gas into ammonia
C. They fix nitrogen gas into oxygen
D. They fix oxygen gas into water