★ Body Systems Quiz
What main organ powers the cardiovascular system?
A. Brain
B. Lungs
C. Muscles
D. Heart
Select your answer:

Topics:
Bones and Muscles Child Growth and Development Oxygenation Mnt For Pulmonary Disease and Adverse Reactions to Food Body Movements Radiography Vocabulary for Organisms in Ecosystems Branches of Medicine Transport System in Man Human Digestive System Musculoskeletal - Clinical 5 Major Food Groups Pathology - Chronic Inflammation Respiration DiabetesOther quiz:
T Cells › ViewWhen in doubt choose…
A. A
B. B
C. C
D. D
Biology › View
Why are viruses considered to be nonliving organism?
A. they do not have genetic information
B. they are not able to move on their own
C. they do not interact with their environment
D. they are no able to reproduce without a host cell