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Solve the problem.
-A researcher finds a positive correlation between the amount of coffee people drink and
anxiety level. Can you conclude that drinking coffee causes anxiety? Propose other
explanations for the correlation. Suggest some ways that the researcher could go about
establishing causality. Refer to the six guidelines for establishing causality.
Arthropods
Invertebrate animals with an exoskeleton, a segmented body, and jointed appendages, including insects, arachnids, and crustaceans.
Jointed Appendages
Parts extending from the body of an organism (such as legs, antennae, or wings) that have joints, allowing for movement.
Ventral Nerve Cord
A major nerve cord found in the ventral (front) side of invertebrates, such as insects and worms, which functions in signal transmission.
Phylogenetic Relationship
Phylogenetic Relationship refers to the evolutionary connections among different species or organisms, showing how closely related they are through a phylogenetic tree or cladogram.
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