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Makovka662 [10]
4 years ago
10

How does the cerebral arterial circle ensure that the brain has a constant supply of blood?

Biology
1 answer:
Viktor [21]4 years ago
6 0
Via collateral circulation. This is an alternative route of blood circulation around the brain whenever one pathway is blocked or narrowed. The arterial arrangement of the brain are symmetrically designed in such a way that continuous blood flow the brain is ensured. The cerebral arteries (anterior and posterior) can be interchangeably shared if one of them is restricted. This means that if one artery is blocked/narrowed the other can accommodate the blood flow needed by the brain.
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<em><u>Everyday functions of the body like digesting your food, moving your muscles or even just thinking, need oxygen. When these processes happen, a gas called carbon dioxide is produced as a waste product. The job of your lungs is to provide your body with oxygen and to get rid of the waste gas, carbon dioxide.</u></em><em><u> </u></em>

Explanation:

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u> </u></em><em><u>you</u></em><em><u> </u></em><em><u>✌️</u></em>

6 0
3 years ago
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The major systems of the body interact with each other to maintain homeostasis. Which statement best describes how the circulato
professor190 [17]

Answer:

The endocrine system produces hormones that are transported to the target regions by the circulatory system. The Circulatory System delivers oxygen and nutrients in the blood to the surrounding cells to maintain Homeostasis. The blood in the Circulatory System is needed throughout the body so that other systems work properly. Like for instance the Nervous System has the brain, and the brain needs blood to function.

hope this helps

3 0
4 years ago
What is the difference between a photoheterotroph and chemoheterotroph, and what are examples of these?
RoseWind [281]
<span>When classifying organisms like this, you are looking for two main descriptors of their lifestyle: how they get their energy and how they get their carbon. A phototroph is an organism that acquires its energy through harvesting photons. A chemotroph harvests energy from chemical bonds.

The term heterotroph is used to describe organisms that acquire carbon from organic substances (namely from other organisms). An autotroph is an organism that has the ability to fix atmospheric carbon CO2 into an organic form.

When you combine these terms, you get a word that describes how an organism harvests energy and carbon. So, a chemoheterotroph is an organism that acquires energy from chemical bonds, and uses acquires organic carbon from an external source (usually, in this case, the energy and carbon come from the same source, e.g., glucose). A photoheterotroph is an organism that gains energy from photons but gains carbon from an external organic source.

Most bacteria, fungi, and animals can easily be described as a chemoheterotroph. A specific bacteria would be Pseudomonas aeruginosa.

Photoheterotrophs would only be found in the prokaryote domains. An example would be Heliobacter. Just to note, there are very few genera of photoheterotrophs. Remember, they gain most of their energy from light (photons), and their carbon from an external organic source (i.e., they do not fix carbon).

</span><span>Basically, photoheterotrophs get energy from light and chemoheterotrophs get energy from breaking chemical bonds.
</span>
I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
3 0
4 years ago
What did Darwin accomplish during his voyage on the HMS Beagle?
Crank
Darwin accomplished the theory of evolution and and natural selection
6 0
4 years ago
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True or false: even though ozone protects us when we are breathing it near the ground, it is harmful to us when it is high up in
Otrada [13]

Answer:

False.

Explanation:

  • Ozone is a triatomic gas.
  • Each molecule of ozone is made up of three atoms of oxygen.
  • Ozone is an extremely important gas in the atmosphere as it absorbs the maximum of incoming solar radiation and the ultraviolet rays of the sun.
  • But Ozone is an extremely reactive gas and is highly dangerous if inhaled for a longer time.
  • It causes damage to the lung tissue and cause respiratory ailments.
  • On the other hand ozone is one of the components of Photochemical smog.
  • Inhaling a significant amount of this gas can cause death.
  • Hence the given statement is False.
  • The correct sentence is:

Ozone protects us when it is high up in the atmosphere, it is harmful to us when we are breathing it.

8 0
3 years ago
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