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Ugo [173]
3 years ago
7

Mapa mental sobre El origen de las especies

Biology
1 answer:
N76 [4]3 years ago
4 0

El origen de las especies, cuya primera edición apareció en 1859, es el libro más conocido de El biólogo británico Charles Darwin. En el libro, Darwin expone su teoría de la evolución. Afirma que toda la vida en la Tierra tiene un ancestro común y que la selección natural es el mecanismo principal para la evolución de las especies.

El libro está considerado como una de las obras científicas más importantes de la historia. Causó revuelo en el momento de su publicación porque atribuyó la riqueza de la forma de vida en la Tierra a un proceso mecánico más que a una inteligencia sobrenatural. Es cierto que otros habían sugerido previamente que podría haber cosas como la evolución o la selección natural, pero "El origen de las especies" es el primer trabajo que extrae la mayor consecuencia de estos conceptos.

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Which structures are fingerlike projections that greatly increase the absorbing surface of cells?.
Illusion [34]

Microvilli are the structures of fingerlike projections that greatly increase the absorbing surface of the cells.

<h3>What is Microvilli? </h3>

Microvilli are membrane protrusions that resemble fingers and are sustained by the actin cytoskeleton. They are present in practically all cell types. An increasing amount of research indicates that the highly curved membranes of the dynamic lymphocyte microvilli play a critical role in signal transduction that triggers immunological responses.

The examination of the process that generates curvature and its functional implications in signaling, however, was impeded by difficulties in altering local membrane curvature and tracking the high dynamicity of microvilli. Recent developments in adaptive super-resolution microscopy have helped to partially overcome these technological obstacles.

Therefore the structure that increases the absorbing surface area is called microvilli.

Read more about Microvilli, here

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4 0
2 years ago
How do astronomers know that some stars are binary?
abruzzese [7]

Answer:

That is an awesome question!

They can tell if a star is part of a binary system the same way they could tell that there were supermassive black holes in the middle of galaxies, that solar systems orbit stars, and that moons orbit planets. By looking at the way that the bodies interact.

You can tell all of these things several ways, but the easiest is by using the big fancy Keplar telescope we've setup in space to look at the minute differences in light when one of them passes in front of the other, if that continues to happen, but with both of those stars constantly passing over each other, and while thats happening other bodies are then passing around those stars. It becomes obvious its a binary system!

However, an alternative way, when they do not have a solar system around them, is that 2 stars, very close together, are orbiting very closely, but not quite around each other, instead circling somewhere in the middle.

Binary systems have their own orbits, but they are affected by each others gravity as well, creating this central point in which both orbit.

Cool thing, these orbits don't even have to be the same size!

Now! Ontop of that, this is just with 2 stars, if you're meaning a black hole and a quasar, it becomes a whole different ball game! The orbits are still similar, however the biggest indicator is the way that the black hole essentially "Feeds" off of the star!

I hope this helps! ;)

Explanation:

Some photos

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Answer:

brainllest if right

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Explanation:

3 0
3 years ago
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s344n2d4d5 [400]

Earthquakes generally increase the rate of weathering and erosion because the energy transmitted through rocks, especially, shear waves (secondary waves) will break rocks. Volcanos emit gases such as carbon dioxide and sulfur that will cause acidic precipitation. This acidic precipitation will dissolve some elements in the rocks hence weakening them and increasing the rate of erosion.

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3 years ago
A group of scientists must complete a study, but they have limited funding from a government organization. What
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Explanation:

Insread of giving up, it's best to cut the experiment and do some study at a time. You can save Money

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