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Drupady [299]
2 years ago
5

How the semen from the bull is used to fertilise cows using artificial insemination

Biology
1 answer:
notsponge [240]2 years ago
6 0

Answer:

In the recto-vaginal technique a sterile, disposable catheter containing the thawed semen is inserted into the vagina and then guided into the cervix by means of a gloved hand in the rectum. The inseminating catheter is passed through the spiral folds of the cow's cervix into the uterus.

pabrainliest po

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What comes up to the surface with cold upwelled water? What effect does this have on the local fishery? What happens to this col
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El Niño is a phenomenon that impedes the occurrence of upwellings in South America's coasts.<em> 1) Nutrients. 2) Favors local fisheries. 3) Upwellings do not occur during El Niño events. </em>

---------------------------------

The El Nino Southern Oscillation -ENSO- phenomenon occurs due to a complex system of climatic oscillations between the ocean and the atmosphere.

This phenomenon causes significant perturbations in the usual pluvial regimens in the tropics. It provokes

• dry seasons in areas where it usually rains

• rainy seasons in desertic regions.

ENSO phenomenon is dominant in the global climate system.

<u>SOUTHERN HEMISPHERE </u>

<u></u>

⇒ Under normal conditions

  • Pacific warm water and air masses move westward, making it possible for cold water to ascend in South America's coasts, in a process known as <em>upwelling</em>.

  • Upwelling occurs in South America, providing nutrients from the bottom to the animals, especially fishes -which<em> favors </em><em>fisheries activities</em>-.

  • Humidity goes straight to the west precipitating in Eastsouth Asia, Australia, and New Zealand, among other places.

⇒ Under El Niño conditions

  • A tropical and weak stream in the Pacific acquires strength while the opposite streams debilitate.

  • This change impedes warm water go westward, remaining on South America's coasts.

  • Upwelling does not occur on the South America coasts. In some regions, temperatures rise, and unusual precipitations occur in desertic or dry areas -Atacama desert-.

  • Other affected areas are<em> Eastsouth Asia, Australia, and New Zealand, </em>where there are fewer precipitations and cooler temperatures. Rainfall drops below the average, affecting crops and livestock.

<em>1) What comes up to the surface with cold upwelled water? </em>

  • Nutrients.

  • Upwelling is vertical water currents, which transport cold water with nutrients from the bottom to the surface.

<em>2) What effect does this have on the local fishery?</em>

  • Favors local fisheries

  • Nutrients coming from the bottom benefit fishes and increase their population growth rates.

  • The increase in the number of fish means a direct increase in fisheries activities.

  • Local fisheries can catch more animals because the population sizes are big enough.

<em>3) What happens to this cold upwelled water during an El Nino event?</em>

  • Upwelling does not occur during El Niño events.

  • Warm water remains on south America's coasts. Hence, cold water from the bottom carrying nutrients does not get to ascend.

  • These are unfavorable seasons from local fisheries.

---------------------------

You can learn more about El Niño events at

brainly.com/question/14562662?referrer=searchResults

brainly.com/question/12105683?referrer=searchResults

5 0
2 years ago
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