Answer:
Option B, Middle ear
Explanation:
Nasopharynx is the upper part of throat which lies behind the nose and it connects the to middle ear. It moves the mucus produced in the middle ear to the throat which is then further drained out.
This tube is responsible for equalizing the pressure inside the ear to the pressure outside the ear. It comprises upper throat and rear side of nasal cavity.
Hence, option B is correct
First, let's distinguish active from passive immunity:
- Active immunity occurs in a direct exposure of individuals to live pathogens. The result is a development of a disease. After that, individuals acquire immunity to the disease.
- Passive immunity is induced by vaccines with antibodies for a disease, so the disease does not develop.
<span>a. ACTIVE IMMUNITY - Bill had a disease, so it must be active immunity.
</span>b. PASSIVE IMMUNITY - Bill got a vaccine and a disease did not develop, so it must be passive immunity.
c. <span>PASSIVE IMMUNITY - Although, 3-month-old daughter did not get a vaccine, she has mother's antibodies from the milk so she will not develop a disease.</span>
When it loses or gains a electron
During fertilization, a _sperm_ and _egg_ combine to form a _zygote_.
Sperm and egg (gametes) are both haploid, and the fertilized zygote is diploid.
