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3 years ago

Which of the following best explains the factors that led to the dust bowl?

Biology

2 answers:

faltersainse [42]3 years ago

3 0

Answer;

C. Poor farming techniques that killed the soil were combined with drought.

Explanation;

-The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors.

-After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.

Alex17521 [72]3 years ago

3 0

The answer is C.) Poor farming techniques that killed the soil were combined with drought. That's a easy one.

-Your welcome ;)

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3 years ago

Suppose virus A has a viral genome of 19,000 bp, and 10,000,000,000 viruses are replicated in an infected individual in a single

Kitty [74]

Answer:

1 day.

Explanation:

From the given information:

The rate of mutation induced by RNA polymerase is:

$\implies \dfrac{1}{10000}= 0.0001$

Since the genome comprise of 19000 bp;

To complete a single replication, the viral cycle induce: $= \dfrac{19000}{1000}$

$= 1.9 \ mutation \\ \\ \simeq 2 \ mutation$

However, in a single day; 10,000,000,000 viruses are reported to be replicated.

Hence, if a virus has 2 mutations; Then 10,000,000,000 virus will have:

$= \dfrac{10,000,000,000}{2} \\ \\ = \text{5000000000 \ mutations \ in \ a \ half \ day which is half} \\ \\ \text{ the given no of the replicated virus}$

SO, to round this up to whole number, it will take 1 day (s) to overcome the therapy.

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3 years ago

Which one is the correct Answer???

Rom4ik [11]

Answer:

I'm pretty sure the answer is 4.

Explanation:

1 and 2 are definitely homeostasis because it is a way to keep your body balanced how it needs to be and 3 would be a natural reaction that your body would make to prevent further pain, but 4 would be a personal choice that is made by the person who stays up.

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3 years ago