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masha68 [24]
3 years ago
12

Gravity on the moon is about 1/6th the gravity felt on the Earth. This is because

Biology
2 answers:
garri49 [273]3 years ago
8 0
The moon has less gravity because it is smaller than the Earth.
kozerog [31]3 years ago
4 0
The moon has less of a gravitational pull than earth does.
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What explanation accounts for the formation of sunspots?
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The curvature of the magnetic fields near the sun's equator creates pockets of the photosphere that aren't warmed by convection.

Explanation:

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The exchange of oxygen and carbon dioxide between the lungs, the body and the outside environment is called
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Breathing duhhhhh! lol i know
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What function do the alveolar sacs serve in the respiratory system?
Brrunno [24]

These alveoli are the smallest types of lung tissue, and one of the most important. In addition to being the primary means by which oxygen enters and carbon dioxide escapes the bloodstream, these small pouches of air are also the reason why the lungs do not totally collapse when a person breathes out. This is because they contain a cell that secretes a special chemical to lower the surface temperature to prevent lung collapse. The alveoli also contain other cells that secrete chemicals to attack and remove any foreign objects in the lungs, such as dust, dirt and other debris.

In addition to making up alveolar sacs, alveoli also form alveolar ducts. It is estimated that there are more than 300 million alveoli in the human lungs, all of which are located in either alveolar ducts or sacs that are found at the end of the smaller passageways, or bronchioles, in the lungs.


SHORT ANSWER:

Alveolar sacs contain tiny pouches called alveoli, whose primary function is gas diffusion. These clusters of alveoli have thin walls that allow oxygen to pass easily from the lungs into the bloodstream and carbon dioxide to flow from the blood to the lungs so it can exit the body.

8 0
3 years ago
Why didn't darwin use mendel's results when formulating his theory of evolution by natural selection?
Naily [24]

Answer;

Mendel's work was not well known until many years after Darwin published his theory of evolution

Explanation;

-Mendel's work was ignored because it was not widely distributed, and he didn't make an effort to promote himself. In actual fact, the reasons are more complex.

-Gregor Mendel had the answer to Darwin's problem. Traits were not blended, but inherited whole. And according to Mendel's laws of inheritance, a trait that might disappear in one generation might reappear in the following generation. Modern Neo-Darwinism combines both Darwin's and Mendel's work.

3 0
3 years ago
The fossil of a plant reveals that it produced spores that were used for reproduction. Which type of plant was it
natali 33 [55]

Answer;

Seedless plant.


The fossil of a plant reveals that it produced spores that were used for reproduction. It was a seedless plant.


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-Seedless vascular plants are plants such as fern and horsetails, liverworts, mosses; which contain vascular tissues, but do not produce flowers or seed.

-These plants reproduce using haploid , unicellular spores instead of seeds.

-These plants have life cycles with two distinct stages; one in which spores are produced and one in which sex cells are produced.

7 0
3 years ago
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