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ivann1987 [24]
3 years ago
6

An example of a human activity that has had a positive effect on the environment is the

Biology
1 answer:
GaryK [48]3 years ago
8 0
The use of reforestation to control erosion in the mountains.
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Stromatolites are rocky structures that generally form in shallow waters from the binding of sediment by microbial biofilms. Str
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<u>Answer:</u>

Approximately, the oldest stromatolites are 3.6 billion years old on earth.

<u>Explanation:</u>

  • Stromatolites is not only oldest earths fossil but conspiracy in that they are singular visual portal in deep time on earth.
  • It is defined as laminated accumulation structure that is they stick up above sea floor .
  • Stromatolite buildings includes oldest fossils which are 3.5 billions old when the earth were too unfriendly to support life.
  • The study of  fossil age, evolutionary, method of formation are known as paleontology.
  • These specimens are considered as old fossils which are around 3.4 to 4.1 billions years old.
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3 years ago
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A plant grows in soil contaminated with toxins.through which structure would the toxins first enter the plant
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Toxins in the soil would enter through the root system first.

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Discuss the impacts of biotechnology on individuals, society, and the environment
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It affects the environment by maybe causing pollution
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A primary healthcare provider prescribes a urinalysis for a client with an indwelling catheter. to ensure that an appropriate sp
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The nurse should obtain the specimen from the catheter.

One of the tests from urinalysis that frequently got contaminated is about infection. The area near the orificium of uretra is near the skin, so there will be microbes around it that can contaminate the sample. The contaminated sample will give a false positive and the result will show the urine are infected.
Taking the specimen from catheter will prevent that contamination, thus giving a better sample.
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