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dimulka [17.4K]
3 years ago
12

What is the columbian exchange?

Biology
1 answer:
tia_tia [17]3 years ago
7 0

Answer:

The travel between the Old and the New World was a huge environmental turning point, called the Columbian Exchange. It was important because it resulted in the mixing of people, deadly diseases that devastated the Native American population, crops, animals, goods, and trade flows.

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Cuadro sobre las barreras de la inmunidad
amm1812

El sistema inmune innato se compone principalmente de barreras físicas, como la piel y las membranas mucosas, barreras químicas, a través de la acción de péptidos antimicrobianos y especies reactivas de oxígeno [4], células inmunes innatas y mediadores solubles como el sistema del complemento, anticuerpos innatos

Explanation:

7 0
3 years ago
Which if the following is required for viral reproduction? A) lysosomes. B) an aquatic environment. C) extreme temperatures. D)
elena55 [62]
I think it’s a living host cell so sorry if I’m wrong yw if I’m right
7 0
4 years ago
Cellular respiration occurs within the ______ of a cell
fredd [130]

Answer:

Mitochondria

Explanation:

The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria.

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8 0
3 years ago
Describe the three major sources of energy taht power earth's environmental systems
MArishka [77]
There are two major sources of energy that power the earth's environmental systems, these are SUN AND THE EARTH'S INTERIOR HEAT.
The heat energy from the sun is the one responsible for processing all the external processes that occur in the atmosphere, hydrosphere and on the earth surface.
The energy from the earth's interior is the one that is respondsible for powering the internal processes that produce earthquakes, volcanoes eruptions and mountain formation.
3 0
3 years ago
Occurs when carbon is returned to the atmosphere from the burning of
rosijanka [135]

Answer:

I believe it is the burning of fossil fuels.

Explanation:

The burning of fossil fuels releases more carbon dioxide into the atmosphere than is used by photosynthesis.

The cycle of carbon is carbon is moved through the atmosphere (carbon dioxide) to organisms. It is then moved from one organism to the next in complex molecules. Next, it is brought back to the atmosphere as carbon dioxide again.

Simple explanation is carbon passed through the atmosphere and back to animals and plants.

4 0
3 years ago
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