Examlex
How low do mean annual air temperatures need to be for permafrost to be continuous?
Species Resistance
The natural immunity that a species possesses against certain diseases to which other species are susceptible.
Chemical Barrier
A chemical barrier refers to a method of protection, via substances that prevent or control the movement or activity of harmful organisms or chemicals.
Phagocytosis
The process by which certain living cells called phagocytes engulf or ingest other cells or particles, important for immune defense.
Chemical Barriers
Substances used to prevent or reduce the entry or growth of harmful organisms, as in contraception or infection control.
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