<h2><u>
Heart and lungs:</u></h2>
The upper chamber of the heart is called atrium and lower chamber of the heart is called ventricles.
The blood circulation in the heart is basically under the functioning of three blood vessels namely:
<h3><u>Arteries:
</u></h3>
- They start with the aorta, the huge vein leaving the heart.
- Veins divert oxygen-rich blood from the heart to the majority of the body's tissues.
- They branch a few times, decreasing and littler as they convey blood more remote from the heart.
<h3><u>Capillaries:
</u></h3>
- These are little; flimsy blood vessels that associate the arteries and the veins.
- Their dainty dividers permit oxygen, supplements, carbon dioxide, and other waste items to go to and from our organ's cells.
<h3><u>Veins:
</u></h3>
- These are the blood vessels that return blood to the heart; this blood needs (oxygen-poor) and is wealthy in waste items that are to be discharged or expelled from the body.
- Veins become bigger and bigger as they draw nearer to the heart.
- The unrivaled vena cava is the huge vein that brings blood from the head and arms to the heart, and the second rate vena cava brings blood from the mid-region and legs into the heart.
Answer:
they us concentrated scopes that go directly out of the atmosphere without any interruption
What does your question mean?
Aristotle
According to Aristotle "Happiness is the meaning and purpose of life, the whole aim and end of human existence"
<h3>What is Happiness ?</h3>
Happiness is a life that is being well led through virtue, living well and acting well.
- Happiness depends on ourselves.” More than anybody else, Aristotle enshrines happiness as a central purpose of human life and a goal in itself.
- Aristotle tells us that the most important factor in the effort to achieve happiness is to have a good moral character — what he calls “complete virtue.”
- But being virtuous is not a passive state: one must act in accordance with virtue.
Learn more about Happiness here:
brainly.com/question/7292814
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Diffusion is the movement of molecules from an area where they’re at a higher concentration to areas that have a lower concentration - goo gle
