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oksian1 [2.3K]
3 years ago
10

What are the causes of genetic variation

Biology
1 answer:
Ugo [173]3 years ago
5 0

Mutation,random mating,random fertilization, and recombination between homologous Chromosomes during meiosis.

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How much of the earths surface do desserts cover and where do they occur? What are the four major types of dessert?​
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The deserts are actually one of the most common and widespread landscapes on the planet Earth. The deserts, combined of all types, are covering around 33% of the landmass, thus one third of the whole landmass on the planet.

These multiple types of deserts, like the hot and dry desert type, cold desert, coastal desert, semiarid desert. All of them have their own unique characteristics that define them more specifically. The hot and dry deserts are the ones that are hot throughout all of the year, also being located deeper into the mainland. The cold deserts are found in the Northern Hemisphere, they have hot summers and very cold winters. The coastal deserts are located along the coasts, so despite being very dry, they do tend to have high humidity. The semiarid deserts are deserts that are not as dry as the other types, they receive more rainfall, though that happens just in few days of the year, so they are dry for the most of it again, with the biggest difference being that they have slightly more vegetation.

7 0
3 years ago
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Which technique involves injecting an animal with a radioactive molecule to see which part of the olfactory bulb is most activat
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8 0
3 years ago
The nurse is explaining a diagnostic procedure to a 7-year-old girl before the procedure begins. Which statement by the nurse be
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Answer:

The correct answer is - option 4.

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Phenotype? I think that's it
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