Examlex
The main site of gas exchange is the ________.
Pathogens
Microorganisms or viruses that can cause disease when they infect a host organism.
Reservoir
A reservoir is an artificial or natural lake where water is stored and often used as a source for drinking water, and for agricultural and recreational activities.
Parasitic Plants
Plants that derive some or all of their nutritional requirements from another living plant.
Nutritional Source
A food or substance that provides essential nutrients needed for growth and maintenance of life.
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