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4 years ago

8. How do scientific laws differ from scientific theories? Explain.

2 answers:

4 0

Laws are what happens without the proof as of why it happens and the theories try to tell you what happens in a very logical way.

ikadub [295]4 years ago

3 0

Answer

Explanation

Scientific laws predict or describe an observed phenomenon without explaining why the phenomenon exists while Scientific Theories try to provide the most logical explanation about why things happen as they do.

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Which is most compromised in the seated dental professional?

Black_prince [1.1K]

The most compromised part of the body in the seated dental professional is the lumbar curve. The dental professional most of the time works seated or rotated at the hips. The human adult spine has normally three curves: the cervical (neck), the thoracic (middle back) and the lumbar (lower back). The lumbar curve plays a very important part in keeping the body's balance in an upright position. When working seated, the whole body tilts forward or twists, two situations that apply great pressure on the lower back.

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Staphylococcus aureus, or staph, is a bacteria that is commonly found in the nose and on the skin of humans. While it is typical

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Phagocytes, like neutrophils, are typically the first responders & most abundant in the bloodstream during acute (usually short-term) infections. They stimulate the inflammatory response.

Thr other options are more for specific immunity that take longer to work.

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3 years ago

Read 2 more answers

Which mineral would be found in greatest concentration in the plasma of the marathon runners?

andre [41]

The right answer is E. Sodium (with 140mmol/L)

Sodium is the most important element in the blood and extracellular liquids of the body.The needs of an adult subject are of the order of 1 to 2 g of sodium per day. The normal diet is much richer than our actual needs, about 4g, so it can largely compensate for the needs of an athlete or a runner.
Losses are majoritarly by feces and sweat. The kidney is able to reabsorb almost all the sodium that is filtered: urinary losses can be tiny.

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3 years ago

How are scientific processes important in solving problems? Give an example and EXPLAIN how these processes make solving this ex

xeze [42]

Scientific process

A step by step procedure of solving a problem is known as scientific process.

Explanation

To solve a problem following steps should be followed: Identification of problem through observation, Development of hypothesis, Experimentation to test hypothesis, Analyze the result of experiment, Conclusion to choose the best possible solution.

Example

1. Identification of problem through observation

Development of agriculture industry lead to soil pollution in the form of heavy metals which cause serious pose to human health. Data collected from environmental department show that heavy is adding day by day in the form of sewage drained from industries in to water, which has also affected aquatic life.

2. Development of hypothesis

Many strategies have been developed for cleaning or removal of heavy metals from soil such as cultivation of heavy metal tolerant plants, installation of plants which filter sewage water before entering into water table, use of bacteria that clean soil from heavy metals.

3. Experimentation to test hypothesis

To test hypothesis and experiment will be set up based on above mentioned method. However main focus should be given on cost, time and environmental friendly approach. To grow heavy metal accumulator plants will cost less but time consuming and after harvesting if their biomass is disposed off, it will again add heavy metals to soil. It is cost effective but time wasting process. Installation of plant to filter sewage is better method but it is cost effective and filter should be changed after a month which cost too much. The use of heavy metal tolerant bacteria is not too costly and once when they enter to soil having heavy metals will absorb heavy metals and will convert them into less toxic form. These bacteria will also reproduce and produce more offspring which will help in cleaning of soil

4. Analyzing result

It was observed in the results that use of plant of clean heavy metal is time wasting process. Similarly, installation of plant is also cost effective, however the use of bacteria for remediation of heavy metal is less costly and not harmful for environment.

5. Conclusion

It was concluded from results that bacteria should be applied for bio remediation purposes.

3 0

4 years ago

PLEASE HURRY IT'S FOR A TEST!!!!!!!!!

MAXImum [283]

Answer:

Rotation is when an item or object (specifically the earth) rotates on it's axis.

Revolution is when an item (the earth) orbits or "revolves" around another one (the sun).

The rotation of the earth determines how long a day lasts while the revolution (or orbit) determines how long a year lasts (with all of the season).

Also you don't have to put the ones in the parentheses ()

8 0

3 years ago