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3 years ago

what is a scientific hypothesis? what characteristics must a hypothesis have to be useful in science?

Biology

1 answer:

Alenkinab [10]3 years ago

4 0

Answer:

A scientific hypothesis must meet two criteria:

Explanation:

A scientific hypothesis must be testable. A scientific hypothesis must be falsifiable. hope this helps you :) god loves you :)

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In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold

Viktor [21]

Alexander Fleming (1881-1955) was a Scottish bacteriologist who discovered penicillin, an antibiotic identified by the substance that moved around a fungus of the species Penicillium notatum.

<h3>1: State the issue or problem that Fleming investigated.</h3>

he investigated the contamination of a fungus that produced antibiotic substances

<h3> 2 What was Fleming's hypothesis?</h3>

That the fungus produced antibiotics and inhibited the growth of bacteria

<h3>3 How was the hypothesis tested?</h3>

He made a nutritive broth, where he placed the fungus, after growth, he extracts the substances

<h3>4 Write a statement that summarizes the results of the experiment.</h3>

He discovered that antagonistic microorganisms may have biochemical devices, such as the production of antibiotic substances, in order to survive.

<h3>5 The Lear experiment for the development of what major medical breakthrough?</h3>

Yes, after this discovery millions of people did not die from bacterial infections.

With this information, we can conclude that Fleming performed several experiments concluding that the fungus Penicillium notatum had a substance capable of killing bacteria. This substance was called penicillin.

Learn more about Fleming in brainly.com/question/21473149

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2 years ago

What are the three goals of integrated pest management (IPM)?

Delicious77 [7]

The correct answer is C. To reduce the use of artificial pesticides, reduce costs, and control pests.

Explanation

Integrated pest management (IPM) is a method that integrates different practices and scientific principles to make adequate management with pests. This method considers knowledge about the habits, life cycle, needs, and aversions of the pest, reducing the use of toxic methods and implementing less toxic methods, monitoring pest activity and adjusting methods over time, tolerating harmless pests, setting a threshold to decide when it is time to act, among others as its main principles. Therefore, the correct answer is C. To reduce the use of artificial pesticides, reduce costs, and control pests.

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3 years ago

Which scientist is known for contributions to a scientific discipline that is different from that of the other three scientists?

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3 years ago

In 1674 the use of the simple microscope allowed Scientist to see what

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The Texture And Look Of A Microscopic Object

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3 years ago

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Breeding livestock is graded "superior," "average," and "inferior" on the same traits as slaughter animals. In a 50-word paragra

BaLLatris [955]

Livestock producers and breeders rank livestock on their ability to produce high quality, efficient breeding animals and market-worthy <u>offspring</u>.

To be able to effectively evaluate breeding and market animals is of vital economic importance for the animal markets. The same traits used to evaluate <u>high-grade slaughter animals</u> are also important in the <u>grading </u>of <u>breeding stock</u>.

When we judge livestock we classify them as:

Superior livestock
Average livestock
Inferior livestock

We are looking for the most desirable traits to fit our particular market and genetic needs. The "Livestock Judging Manual" indicates that some of the most prevalent traits necessary to score a better rating are:

<em>Live weight</em>
<em>Fat depth</em>
Muscling

and many more. The most important of which is muscling given that an animal with more muscle will produce more desirable meat for the average consumer, and therefore can be sold at higher prices.

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3 years ago