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Mice21 [21]
4 years ago
8

How might a change in the strength of Earth’s magnetic field impact life on Earth?

Biology
1 answer:
Fittoniya [83]4 years ago
7 0

Answer:   i don`t know that much but

Explanation:   if the  magnetic  field of the  earth is decreasing year by year at one point it would be so weak that everything on earth would float here and there. the ocean of the earth would also float and as the ocean is one third of the earth the most of the earth would be covered in just floating water.

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Natural selection is an evolutionary mechanism by which _______.
torisob [31]

Answer: The correct answer for the fill in the blank is B) Advantageous traits become more common in a population.

Theory of natural selection was given by Darwin. This is one of the mechanisms of evolution.

According to this theory, organisms that are better adapted to their environmental conditions survive and increase their population by reproduction. So they pass the advantageous trait to the next generation. In other words, it reflects the survival of the fittest.

Due to this, the advantageous trait becomes more common in the population.

Thus, the correct option is B)

8 0
3 years ago
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3. Which of the following is the term for the energy of
Minchanka [31]

Answer:

2) kinetic energy

Explanation:

Its the right answer

4 0
3 years ago
In an effort to control the ongoing cholera epidemic affecting Haiti, health officials are
exis [7]

The right answer is B.

Cholera vaccination is only recommended for staff who have to intervene with patients in an epidemic situation. In all other cases, effective prevention is provided by good personal hygiene (washing hands) and food.

It is also important to know that this vaccine does not protect permanently: It protects only about 90% within 6 months, then to 50% within 3 years.

6 0
4 years ago
Marcie feeds her dog 98 ounces of dog food each week. She has 6 pounds of dog food.
Mumz [18]

Answer:

She does not have enough for a week. Marcie has 96 ounces.

Explanation:

6 pounds is 96 ounces. Since she needs 98 ounces, she does not have enough for a week.

3 0
2 years ago
Each clan will be isolating two different bacteria,Pseudomonas sp. and Bacillus sp., from the same soil sample. What two traits
trapecia [35]

Answer:

  1. The former bacteria, Pseudomonas sp., has the ability to utilize benzoate as a source of carbon.
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Whereas the latter, Bacillus sp., does not possess these characteristics.

Explanation:

The two traits mentioned above will provide the basis upon which the strategy for enrichment can be made.

8 0
3 years ago
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