Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


1. blood
2. the human heart pumps blood like this vein right atrium right ventricle pulmonary vein alveoli left atrium left ventricle  dif.parts of the body
3. answered in 2
4. the model will not function propery because of the path is blocked
1 5 1
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts