Examlex
The principal nitrogenous waste of protozoans is
Atresia
The absence or abnormal narrowing of an opening or passage in the body, such as in the digestive tract, ear canal, or heart.
Hepatitis B
A serious liver infection caused by the hepatitis B virus that can become chronic and lead to liver failure, cancer, or cirrhosis.
HBV Vaccine
A vaccine that provides immunity against the hepatitis B virus, preventing hepatitis B infection.
Carrier State
A condition in which a person harbors a disease-causing organism but shows no symptoms, potentially transmitting the pathogen to others.
Q6: Which of the following is a characteristic
Q14: Structures that function in chemoreception and are
Q16: Recent molecular studies suggest that members of
Q22: Explain Jean-Jacques Rousseau's theory of education as
Q24: The non-living reservoir,or initial source,for elements such
Q24: Which of the following is a function
Q26: Identify and explain two examples of Europe
Q27: Because amphibians depend on external sources of
Q27: List and define three ways in which
Q51: Asexual reproduction by fission in some turbellarians