You Find an Animal with No Backbone,a Body in Three

question 66

Multiple Choice

You find an animal with no backbone,a body in three segments,jointed appendages,and a hard exoskeleton.You determine that this animal is a(n)

• A) chordate.
• B) nematode.
• C) mollusk.
• D) arthropod.
• E) echinoderm.

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Definitions:

Dependent Variable

A variable in scientific research that is affected by changes in another variable, called the independent variable.

Exercise

Physical activities that are performed in order to improve health, maintain fitness, or gain physical strength.

Operational Definition

A clearly defined set of procedures or criteria for identifying and measuring variables or concepts in research.

Empirically Tested

Pertains to a method or statement that has been verified or investigated through observation and experiment.