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Delvig [45]
4 years ago
12

The same, unknown bacteria is isolated from 20 sick individuals. Their samples were grown in culture and then placed in 10 healt

hy mice. Those mice started to show signs of a heightened immune response. To determine if the bacteria is pathogenic, what is the next step by using Koch’s postulates?
Biology
2 answers:
AleksAgata [21]4 years ago
4 0
<h2>Koch's Postulates.</h2>

Explanation:

The next step should be isolate the microorganism from the mice and check if it is identical to the original microbe.

According to Koch's postulates, a microbe can be considered as a causative agent of a disease only after all the following are established:

  • The microorganism should be present in all the organism suffering from the disease.
  • The isolated microorganism should be grown in pure culture.
  • The organism grown in the culture should be reintroduced in the susceptible but healthy host.
  • Finally the microorganism must be re-isolated from the experimental host an cultured to see whether it is identical to the original specific microorganism.

tino4ka555 [31]4 years ago
3 0

Answer:

The answer is "C"

Explanation:

"Reisolate it, and determine if it is the original unknown bacteria."

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Part A
FrozenT [24]

Answer:

The correct Hint is D) Stepwise

Explanation:

Scientific inquiry usually involves a process through which scientists try to resolve tough problems.

Many people have proposed various steps to the methodology of scientific inquiry. There is one that has 3 steps, one that has 5 steps, and another that has 7 steps.

The 7 steps of scientific inquiry are given below:

  1. Defining the Question.
  2. Stating the Research.
  3. Postulating the Hypothesis.
  4. Carrying our the Experiment.
  5. Making Observations.
  6. Reaching Results/Conclusion.
  7. Communicate. Present/share your results. Replicate.

Cheers

4 0
3 years ago
Point source pollution comes from sources that are___?
vivado [14]
C. Basically unknown
4 0
3 years ago
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Which 2 elements have the same number of valence electrons?
alexandr1967 [171]
Sodium and potassium
8 0
4 years ago
1. Analyze Graphs What trend in the monarch population does the graph show?
Vlada [557]

Answer:

Let's analyze the graph.

we can see that in 1995, the total area occupied was around 8 he.

Then we have a steep increase, reaching a maximum in the year 1997, where the area occupied was 20 he.

After that the area decreases abruptly and remains (varying a little from year to year) around 5he

Now we can look at the year 2006, that year the area was around 5he, ut after that we can see an almost constant decrease in the area, where each year (except from 2010 to 2011) the area decreased.

Ending in 2014 near 1 or 2 hectares.

The conclusion that we can take from this graph is that, while some years ao the area fluctuated around some values, in recent years we can see a clear decrease in the area ocuppied by the Overwintering Monarchs.

7 0
3 years ago
Chromosomal alterations include: deletions and....?
Roman55 [17]

If I remember correctly it should be translocation mutations. But I do not see it as one of the options.

5 0
3 years ago
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