1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melisa1 [442]
3 years ago
12

The 30 trillion or so cells in your body require a continuous supply of oxygen and nutrients and an unending removal of waste ma

terials. the blood carries these materials in the body's circulation within a series of closed tubes, called
Biology
1 answer:
dimaraw [331]3 years ago
7 0
Sounds like Your cardiovascular system, the closed tubes must be your blood vessels, siencey  term: your Angio, which means blood vesels

You might be interested in
Identify two ways in which environmental resources are important to human health.
Paul [167]
Food and oxygen because plants give people food and oxygen... tree give people oxygen and fod
5 0
4 years ago
Human activities, chiefly burning fossil fuels, adds carbon dioxide into the
disa [49]

Answer:

look left maybe right or out

7 0
3 years ago
Plate tectonics can affect climate change because
ycow [4]
The answer is C, plate movement has no effect on climate change
4 0
3 years ago
Who is Mendel? What did he study? Why was his research important
Eddi Din [679]

Answer:

Gregor Mendel was an Austrian monk who discovered the basic principles of heredity through experiments in his garden. Mendel's observations became the foundation of modern genetics and the study of heredity, and he is widely considered a pioneer in the field of genetics. He is known as the "father of modern genetics".

4 0
3 years ago
True or False:<br> Minerals are often found in the shapes of crystals
Gre4nikov [31]
False hope u had a good day
6 0
3 years ago
Other questions:
  • Let’s pretend we are studying camels in the Namib desert. There were two possible genotypes for the shape of a camel foot.
    6·1 answer
  • I NEED HELP!!!<br><br> Explain what is meant by a polar molecule.
    5·2 answers
  • According to the Christian beliefs Jesus was sent to Earth to
    15·2 answers
  • What is the substitute of u in tRNA
    15·2 answers
  • Which is a type of passive transport? exocytosis diffusion endocytosis gap junction
    13·1 answer
  • PLEASE HELP I NEED IT ASAP
    14·1 answer
  • Territorial behavior does not extend to organisms of different species. True or False
    9·1 answer
  • Blank: maintenance of stable internal conditions
    8·2 answers
  • The<br> force keeps molecules in a fluid together.
    9·2 answers
  • The process of natural selection requires all of the following, except:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!