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bagirrra123 [75]
3 years ago
8

The petroleum industry uses deep-well injection to dispose of its hazardous waste.

Biology
1 answer:
tatiyna3 years ago
5 0

Answer: because they are situated near aquifers

Explanation:

Aquifers is a underground layer of rock which can hold and release water in desirable amounts so petroleum industries claims the well are safe.

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An organism's genome is analyzed and found to contain 18% guanine. What percentage of that organism's DNA is adenine?
Oxana [17]

Answer:

32%

Explanation:

According to Chargaff in his complementary base pairing rule, he stated that the proportion of purine and pyrimidine bases is equal to 100%

That is, A + T + G + C = 100%

Where A=T and G=C i.e the proportion of each base pair is equal.

Hence, if the Guanine content is 18%, it means the Cytosine content of that DNA molecule must also be 18%. Therefore:

18 + 18 + A + T = 100

A + T = 100 - 36

A + T = 64

If the sum proportion of Adenine and Thymine is 64% and each must contain equal proportions, A or T = 64/2 = 32

Hence, Adenine contains 32%, likewise Thymine.

6 0
3 years ago
Carol wants to become a medical assistant. She is wondering why it is necessary to spend the time learning the roots, suffixes,
docker41 [41]
Medical terminology is to create a standardised language for medical professionals. This language helps medical staff communicate more efficiently and makes documentation easier. This enables staff to save time by ensuring they don’t have to explain complex medical condition in plain English and can focus on the treatment of patients. Medical terminology can look and sound complex, but it's important to be able to break words down and understand their roots, prefixes and suffixes to prevent any misunderstandings or errors.

6 0
2 years ago
Consider how to complete this timeline to show the order in which different evolutionary ideas were developed.
patriot [66]

Answer:

The answer is c. W,X,Z

Explanation:

According to the evolutionary timeline:

  • (W)  In 1798, Thomas Robert Malthus published an essay, "An Essay on the Principle of Population." Malthus proposed that the current rate of population growth would deplete current resources.
  • (X)  1809 marked the publication of the first theory of evolution. Jean Baptiste Lamarck proposed that evolution occurred through the inheritance of acquired characters.
  • (Z)  In 2003, Wayne State University School of Medicine's Dr. Morris Goodman conducted studies that revealed a 99.4% genetic similarity between human and chimpanzees. This sparked a debate in the scientific community whether to include chimpanzees in the genus, Homo.
  • * If Y is part of the choices, it comes after (X).
5 0
3 years ago
Read 2 more answers
lots of points Viruses and bacteria can infect human cells. Bacteria are living organisms, while viruses are not. How do you thi
erma4kov [3.2K]

Answer:

When the virus enters a living cell (a human cell, if the virus infects humans, or a bacterial cell, if the virus infects bacteria) it reprograms that cell and turns the cell into a virus factory. Adaptive Immunity: All organisms have different types of immunity to protect themselves against infection.

While both can cause disease, viruses are not living organisms, whereas bacteria are. Viruses are only "active" within host cells which they need to reproduce, while bacteria are single-celled organisms that produce their own energy and can reproduce on their own.

As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.

Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese. But infectious bacteria can make you ill. They reproduce quickly in your body.

8 0
3 years ago
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The first organisms to photosynthesize are called
Lapatulllka [165]

Answer:

cyanobacteria

Explanation:

3 0
3 years ago
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