Ecotoxicology Lab Review

These flashcards cover key definitions and concepts related to ecotoxicology, pollutants, and their impacts.

Pollution is defined as __ that accumulate in the environment at levels harmful to living organisms.

unnatural by-products of human activities.

Examples of specific types of pollution include __, __, __, and __.

Acid, Organic, Thermal, and Pharmaceutical.

Acid pollution is primarily caused by and oxides reacting with air to form acids.

sulfur and nitrogen.

The process by which a body of water acquires a high concentration of nutrients is called __.

Eutrophication.

The median lethal dose, LD50, refers to the dose required to kill __ of the tested population.

half the members.

An ecotoxicology bioassay examines the effects of toxic substances on __ organisms.

indicator.

Organic pollution consists of compounds that are __ to environmental degradation.

resistant.

Acid rain is defined as rainwater with a pH of __ or lower.

5.6.

Daphnia, known as a freshwater flea, is used as an __ organism in ecotoxicology studies.

indicator.

The accumulation of toxic substances in an organism at a rate greater than their loss is known as __.

bioaccumulation.