An instructor says that this disease has been nearly eradicated in developed countries. which disease is probably being discussed?

Nowadays, different countries are constantly emerging and expanding their liabilities which may include the field of medicine. The disease that is being discussed by the instructor that is considered nearly eradicated is probably the measles. This disease is caused by Paramyxovirus which is a major respiratory pathogen among infants and young children. Measles is also known as “rubeola virus”, an acute, highly respiratory symptoms and a maculopapular rash that affects the mouth, head, body and extremities. It begins with the appearance of Koplik spots which may end up to some complications like symptomatic encephalitis and subacute sclerosing panencephalitis(SSPE). In order to prevent this type of disease MMR(Measles, Mumps & Rubella) Vaccine is needed. According to some of the reports, it is still common to some of the countries, but WHO campaigns to eradicate the disease worldwide by the year 2020.

the reason the two sea urchins don't compete with each other for food, resources, etc. is because the urchins have adapted to the environment but they have also adapted to each other. this is most likely because the genes of the sea urchins.

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.