For the answer to the question above, I think that <span>Point mutation is when only one nucleotide is changed so one  example that I could give would be TAC GG
I hope my answer helped you. Have a nice day! 
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Answer:
frequency✧C
wavelength✧A
wave speed✧D
wave period✧E
amplitude✧B
i'm not sure if they are all correct so sorry ✧
 
        
             
        
        
        
An isotope of any element is the same, with a variation in the neutrons of the nucleus.
The mass number change but the atomic number doesn't.
In this case, protium, deuterium, and tritium are all hydrogen isotopes.
Protium is 1H or Hydrogen-1 is without neutrons.
Deuterium is 2H  or Hydrogen-2 has one neutron.
Tritium is 3H or Hydrogen-3 has two neutrons.
 
        
             
        
        
        
The right answer is smelly garbage.
Infestation is the penetration into the body of a parasite whose nature is not microbial.
smelly garbage is not synonymous of infestation, because the olfactory system only detected smelly metabolites of these microorganisms. This does not necessarily mean that the microorganism has managed to penetrate the body.
By cons other proposals are signs and tools for infestation (torn packaging with food leaking out, dead insect bodysuits, feathers, and fur).