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Radda [10]
2 years ago
9

Ciliated ependymal cells: A) help form the blood-brain barrier. B) circulate cerebrospinal fluid. C) form myelin in the brain an

d spinal cord. D) serve as wandering phagocytes during brain injury.
Biology
1 answer:
masha68 [24]2 years ago
4 0

Ciliated ependymal cells:<u> circulate cerebrospinal fluid.</u>

Ependymal cells are a type of epithelial cell that is associated with the cavities of the body through which the cerebrospinal fluid circulates.

  • They are part of glial cells, which share space with neurons in the nervous system.

  • They create the membranes that keep cerebrospinal fluid circulating through the ependymal canal of the spinal cord and the cerebral ventricles.

  • For this, the ciliated structure that these cells present is essential for a correct movement of the cerebrospinal fluid, preventing it from spilling through other tissues and passing to areas of the body where it should not be.

  • The cilia move rhythmically creating tiny currents for fluid to flow through the central nervous system.

  • A small fraction of highly specialized and modified ependymal cells, called choroidal cells, are responsible for generating this essential fluid.

Therefore, we can conclude that ciliated ependymal cells circulate cerebrospinal fluid.

Learn more here: brainly.com/question/6574878

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Fantom [35]

Answer:

No, bottled water cannot go bad.

Explanation:

It is impossible for any sort of water to "expire". But, when in the bottle for to long, the plastic does become dangerous. The bottle begins to leak chemicals into the water. This doesn't make the water toxic, but it can alter the taste of your water.

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A drought causes a wildfire which destroys a forest. Which Earth systems interact during this process? (1 point) Select one: a.
Ne4ueva [31]

<u>Answer:</u>

<em>It is the biosphere and hydrosphere that interact when a drought causes a wildfire that destroys a forest. </em>

<u>Explanation:</u>

Hydrosphere consists of all the water bodies of earth like oceans, seas, rivers, lakes etc.  a drought occurs due to scarcity of water which affects the hydrosphere. The scarcity of water causes plants and trees to dry up and become more prone to catching fire

Biosphere includes all the living organisms of the earth. It includes plants, trees, birds, insects, animals etc. A drought dries up a whole area and a small fire that starts up somewhere in  a forest would then engulf the whole forest.

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3 years ago
scientific investigations often lead to the formulation of new scientific questions. charle’s darwin reviewed his observations a
Sergeeva-Olga [200]

The question that Charles Darwin would be prompted to ask on his voyage is as follows: can selection in nature also lead to a new species over time?.

<h3>Who is Charles Darwin?</h3>

Charles Darwin was a British naturalist/scientist and founder of the theory of evolution by natural selection.

He is best known for his award-winning work on the origin of species, which he published in 1859. Darwin developed his theory from findings he made following a five-year expedition on board HMS Beagle.

According to this question, Darwin reviewed his observations after he returned home from his voyage studying the selective breeding of pigeons.

The question that Charles Darwin would be prompted to ask on his voyage is as follows: can selection in nature also lead to a new species over time?.

Learn more about Charles Darwin at: brainly.com/question/16489282

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1 year ago
In 1665, a scientist named Robert Hooke examined a thin piece of cork through a microscope. The drawing below represents what he
-Dominant- [34]

The Englishman Robert Hooke (18th July 1635 - 3rd March 1703) was an architect, natural philosopher and brilliant scientist, best known for his law of elasticity (Hooke's law), his book Micrographia, published in 1665 and for first applying the word "cell" to describe the basic unit of life. It is also less well known that there is substantial evidence that Hooke developed the spring watch escapement, independently of and some fifteen years before Huygens, who is credited for this invention. Hooke also is recognised for his work on gravity, and his work as an architect and surveyor.


Hooke's Micrographia

Here, we focus on his pioneering work using the microscope to document observations of a variety of samples in his book Micrographia, published in September 1665.


Hooke began his famed career by initially studying at Wadham College, Oxford, where he worked closely under John Wilkins with other contemporaries, including Thomas Willis and Robert Boyle, for whom he built the vacuum pumps used in Boyle's gas law experiments. He also built some of the earliest telescopes, observing the rotations of Mars and Jupiter, and, based on his observations of fossils, was an early proponent of biological evolution. If that wasn't enough, he investigated the phenomenon of refraction, deducing the wave theory of light, and was the first to suggest that matter expands when heated and that air is made of small particles separated by relatively large distances, yet curiously Robert Hooke is somewhat overlooked in his contributions to science, perhaps as there were many people who wrote of Hooke as a difficult personality, being described as of "cynical temperament" and of "caustic tongue". There were also disputes with fellow scientists, including disputes with Isaac Newton over credit for work on gravitation and the planets. Though it must be remembered that Hooke lived at a time of immense scientific progress and discovery and none of the above diminish Hooke'

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1.
ella [17]
B water pollution is the answer
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