amount of pressure exerted by one gas within a mixture of gases

small particle such as dust, dirt, viral particles, and bacteria that are in the air

transfer of antibodies from one individual to another to provide temporary protection against pathogens

method of transporting material through a membrane that does not require energy

(also, kneecap) triangular bone that lies anterior to the knee joint

agent with the ability to cause disease

an agent, usually a microorganism, that causes disease in the organisms that it invades

carbohydrate, polypeptide, and nucleic acid “signature” that is expressed by viruses, bacteria, and parasites but differs from molecules on host cells

molecule on macrophages and dendritic cells that binds molecular signatures of pathogens and promotes pathogen engulfment and destruction

Sphagnum

bones that transmit the force generated by the upper limbs to the axial skeleton

second pair of appendages in Chelicerata

scientific paper that a scientist’s colleagues review who are experts in the field of study

(also, pelagic zone) open ocean waters that are not close to the bottom or near the shore

outer cell covering composed of interlocking protein strips that function like a flexible coat of armor, preventing cells from being torn or pierced without compromising their range of motion