Register
The 30 trillion or so cells in your body require a continuous supply of oxygen and nutrients and an unending removal of waste materials. the blood carries these materials in the body's circulation within
180k views
2 votes
The 30 trillion or so cells in your body require a continuous supply of oxygen and nutrients and an unending removal of waste materials. the blood carries these materials in the body's circulation within a series of closed tubes, called

User Heemanshu Bhalla
by
8.5k points

1 Answer

4 votes
Sounds like Your cardiovascular system, the closed tubes must be your blood vessels, siencey term: your Angio, which means blood vesels

User Leonidas
by
8.3k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

Why aren't all minerals gemstones?
Two methods of active transport
How can paleontologists help us understand the past
What is the phenotype of a heterozygous person using T for tall and t for short
in rabbits, black fur is dominant over white fur. Show the cross of a heterozygous black male with a homozygous white female.
Link Copied!