Normally, samples of _______________ are considered sufficient for accurately measuring public opinion through the use of surveys. (Public opinion of the whole country)

Politically, the Declaration was remarkable because, despite the differences of interest that divided the colonists along economic, regional and philosophical lines, it focused on grievances that might ___________________.

The benefit of adaptive immunity is the production of _______ that provide long-lasting protection.

An inanimate object that harbors and transmits a pathogen is a _______.

_______ carriers are shedding and transmitting pathogens while they are recovering from an infectious disease.

The primary, natural habitat of a pathogen where it continues to exist is called the _______.

What is believed to be the primary route of infection with SARS-CoV-2, the virus leading to COVID-19?

An animal, such as an arthropod, that transmits a pathogen from one host to another is a _______.

The _______ system of blood proteins acts to lyse foreign cells and viruses.

The subjective evidence of disease sensed by the patient is termed a(n) _______.