Examlex
Arthropods do not have any form of blood or heart.
Causal Relationships
Connections between variables where a change in one variable directly influences a change in another.
External Validity
The extent to which the findings of a study can be generalized to other settings, populations, or time periods.
Laboratory Experiments
Experiments conducted in a controlled environment where variables can be manipulated and measured precisely.
Informed Consent
In research ethics, the principle that participants in an experiment be informed in advance of all aspects of the research that might influence their decision to participate.
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