Which system contains the brain and nerves?
A. excretory
B. nervous
C. respiratory
D. musculoskeletal
Select your answer:
Topics:
Joints and Range of Motion Biology Assessment Brain DNA & Types of Reproduction Vocabulary Respiratory History of Psychology Cancer & Cell Cycle Nutritional Trivia Hospital Departments Muscularskeletal System Effect of Exercise on Cardio Respiratory System & Muscular Vet Terminology Water Macromolecules Understanding Psychology Nervous SystemOther quiz:
Cell Cycle › ViewWhy is it crucial that living things are able to replicate their DNA?
A. Each cell must have its own DNA
B. Less copies of DNA are needed when a new cell is created
C. A cell needs multiple copies of DNA
D. Only muscle cells need DNA
Respiratory System › View
The walls of the alveoli and capillaries are permeable. What does this mean?
A. Substances can pass through them.
B. They are made of muscle.
C. They are located throughout the body.
D. They are made of bone.