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dimulka [17.4K]
2 years ago
12

What is the columbian exchange?

Biology
1 answer:
tia_tia [17]2 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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What is the order of the breathing process
NemiM [27]
Step 1-
Your diaphragm moves down as it contracts. Your ribs move outward. These movements make the space inside the chest larger.
Step 2-

Air rushes in through the nose and mouth and passes through the throat. Air then moves past the epiglottis which is open into the trachea.

Step 3

Air moves into your bronchi. The bronchi branch out and end in tiny air sacs, called alveoli.

Step 4

<span>Air moves into your alveoli. Oxygen moves through the walls of alveoli and capillaries, entering the blood.</span>

Step 5

Carbon dioxide moves from the blood through the walls of capillaries and alveoli in order to be expelled by the lungs.

Step 6

Your diaphragm moves up as it relaxes. Your ribs move inward. These movements make the space inside the chest smaller.

Step 7

<span>Your lungs are squeezed and air is pushed out of the alveoli. The air travels back through your bronchi, trachea, and nose and mouth.</span>

7 0
3 years ago
HELPPPPP :p
Goryan [66]

Answer:

In a general aspect, humid and warm air moves to lower latitudes or in altitude, losing heat and getting colder. Its humidity condenses and causes precipitation. Depending on the air movement there are different kinds of rain.  

Explanation:

At a global level, it occurs unequal warming of the atmosphere, which depends on many factors and varies with latitude. This occurs because solar radiation reaches the earth differently at different latitudes, resulting in big convective cells of atmospheric circulation: Hardley cell, Ferrel cell, and Polar cell.    

A convective cell is the movement of the humid air among different latitudes. Air moves from higher latitudes to lower latitudes, getting warm, getting less dense, and ascending. As the air gets higher in altitude, it´s density and pressure decrease, so the air tends to expand with elevation in response to the reduced pressure. Gases in expansion experiment adiabatic cooling, losing caloric energy as their molecules move getting farther away from each other. As the air gets higher, it gets colder, and hence, denser. The result is that descends again. Humidity gets denser and precipitates.

• Rain is controlled by temperature on the earth´s surface, atmospheric global air circulation, the position of the mountains and oceans, closure to the oceans.  

• There are different kinds of precipitations according to their origin.

<em>i. Convective precipitation: </em>These are the most typical ones. Air gets warmer and less dense, elevating in altitude with humidity. On the way, it starts to get colder, and the humidity condenses, resulting in precipitation. Depending o the degree of condensation, the precipitation might be in a liquid state (rain), semisolid-state (snow), or solid-state (hail).

<em>ii. Frontal Precipitations: </em>They occur when a polar front coming from higher latitudes collide with a warm front coming from lower latitudes, resulting in a strong rain. This is typical of grasslands or temperate forests (approximately 40 º latitude)

<em>iii. Orographic Precipitations:</em> They occur when humid wind ascends by a mountain range, causing its adiabatic cooling, condensing the humidity, and precipitating.  

7 0
3 years ago
Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the: Sensory information fr
pishuonlain [190]

Answer:

Spinocerebellar tracts.

Explanation:

Spinocerebellar tracts are afferent neurons that transmit proprioceptive information from the peripheral nervous system ( muscles and joints propricetors) to the cerebellum. It originated from the spinal cord and end at the cerebellum. It carry unconscious proprioceptive sensory information from the muscles, organs to the cerebellum.

5 0
3 years ago
Which of these parts of the membrane help large molecules pass through it?
Reika [66]

Answer:

globular proteins

6 0
3 years ago
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Arbuscular mycorrhizal fungi differ from ectomycorrhizal fungi in that arbuscular mycorrhizal fungi __________.
White raven [17]
Penetrate into the root cells of the plants and ectomycorrizal fungi.
8 0
3 years ago
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