1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexandr1967 [171]
2 years ago
8

Tuberculosis is a disease caused by a bacterium and can often be fatal. For several decade , antibioticre very succesful in kill

ing tuberculosis bacteria but now strains of the bacteria have developed that can only killed by when treated for long period of time with multiple types of antibiotics. Why have the antibiotics become less effective aagainst tuberculosis
Biology
1 answer:
yaroslaw [1]2 years ago
8 0
I think it’s because the bacteria has evolved and become immune to the antibiotics.
You might be interested in
After 8 weeks on the different diets, the scientists collected the following data on the two groups of mice:
svetoff [14.1K]
You didn't really provide the required table. But as a general hint, you should look at the differences between the two groups and then you can see what were the differences in amount of weight gained, amount of body fat, as well as the composition of the microbial community. 
3 0
2 years ago
0.00000000000000000000000000000
kari74 [83]

Answer:

i think its zero

Explanation:

7 0
3 years ago
4 The graph below shows how the activity of an enzyme changes
choli [55]

Answer:

A

Explanation:

A. The optimum pH of the enzyme is 6.6.  - this is true. The optimum pH of the enzyme is where its activity is the highest. On the graph, this is pH 6.6 (activity at 100)

B. The optimum pH of the enzyme is 5.8.  - this is false, the activity of the enzyme peaks at 6.6 (100), at 5.8 the activity is 80

C. The enzyme's activity is greater around pH 8.0 than around  pH 5.0  - This is false, the activity at pH 5 is 50, whereas at around 8 it is 20.

D . The enzyme's activity continually increases as pH increases  from 5.0 to 9.0 - this is false. The activity drops between pH 6.6 and pH 9.

6 0
3 years ago
Many times, the molecules join to form long chains with what kind of backbone?
MariettaO [177]
They have carbon backbones
6 0
3 years ago
Read 2 more answers
The nucleus in a body cell of a fly contains 12 chromosomes.
SSSSS [86.1K]

Answer:

it contains 6, the number of chromosomes in the gamete is half the number of chromosomes in the nucleus of the body cell.

I hope this helps

7 0
2 years ago
Other questions:
  • Ken enjoys bird watching. Every summer, he sees many ruby-throated hummingbirds in his garden. However, during the winter, he ne
    6·1 answer
  • How would you take a difficult subject matter - such as poaching, deforestation, or climate change - and communicate it in a kid
    5·1 answer
  • How do the Earth and Moon compare in terms of gravitational force?
    15·2 answers
  • How could stem cells prove helpful in the treatment of cardiovascular diseases? A) Stem cells can differentiate to form heart mu
    15·1 answer
  • If earth was like a hard boild egg which part would the egg shell represent and why?
    9·2 answers
  • Which of the following would cause an error in DNA replication?
    13·1 answer
  • What was George H. W. Bush’s “new world order?
    12·1 answer
  • Which will most likely cause an increase in the frequency of genetic mutations in
    6·1 answer
  • State two benefits of sage and two of its side effects
    6·1 answer
  • Hurry please!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!