Free help with homework

Why join Brainly?

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


Blood test is useful in diagonising the disease. When the blood is removed from our body, if the blood has some impurities in it then it can be identified.
4 3 4
Blood test is useful on disease diagnostics because viruses or bacteria attack first on blood and blood is the easiest way to deck them
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