Conductive hearing loss occurs from either (1) blockage from the external ear or (2) damage to any components of the middle ear; hence the answer here is false. Hearing loss that results from damage to the inner ear or the vestibulocochlear nerve is called <em>sensorineural hearing loss</em>.
<em>The most common cause of sensorineural hearing loss is noise-induced hearing loss due to prolonged exposure to high decibel environments (i.e. machine workers). </em>
Answer:
C) Bacteria because it contains bacteria that do not live in extreme conditions.
Explanation:
Bacteria in domain Bacteria live in the soil, water, bodies of humans and animals, but not extreme environments.
Answer:
C. how natural processes can introduce harmful materials into the environment
Explanation:
Yes, It seems that evolution has occurred in this area.
Explanation:
Evolution refers to a phenomena in which new traits or alleles that favor a better survival of organisms in a given environment, become fixed in the population.
Evolution is characterized by appearance of new characters and change in allele frequencies.
In the given situation we find that the frequency of the recessive allele in the population has changed over time and the percentage has become fixed.
So, we can say that evolution has occurred in the robin population
