Examlex
The degrees of freedom for the related samples t test is the number of pairs of participants minus one,and not always the total number of participants minus one.
Contaminated Water
Water that has been polluted by harmful substances, making it unsafe for consumption or use.
Cnidarians
A phylum of aquatic invertebrate animals that includes jellyfish, corals, sea anemones, and hydras, characterized by a simple body structure with a single opening and tentacles with stinging cells.
Stinging Cells
are specialized cells found in various marine organisms such as jellyfish and corals, used for capturing prey and defense by discharging toxic substances.
Toxin-Filled Capsule
A structure containing poisonous substances, often produced by microorganisms as a defense mechanism or to attack other cells.
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