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alexandr1967 [171]
3 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]3 years ago
8 0
I think it’s because the bacteria has evolved and become immune to the antibiotics.
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1. Which grouping in the animal kingdom is the only one that contains organisms with vertebrae?
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How did the environment affect the populations of peppered moths in the 1800s in London?
Olenka [21]

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Option A. Because of the soot covering everything, the dirtier darker moths will be eaten less often, allowing them to reproduce and pass their genes on to the next generation.

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The risk of schizophrenia among biological relatives is greatest for identical twins.
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The risk of schizophrenia among biological relatives is greatest for identical twins. This is a true statement.

<h3>What is schizophrenia?</h3>

Schizophrenia is a neurological disorder that causes an affected individual to lose touch of reality.

Schizophrenia can be caused by the following:

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  • Environment: Urbanicity, migration, cannabis, childhood traumas, infectious agents, obstetrical complications and psychosocial factors

  • Brain chemistry and circuit

  • Brain abnormalities: Impaired communication between brain regions leads to the associated symptoms and cognitive changes.

According to research, the risk of schizophrenia among biological relatives is greatest for identical twins because they are genetically identical.

Learn more about genetics here:

brainly.com/question/851793

#SPJ1

7 0
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