Examlex
Two distinctive features of Acanthocephala are a spiny proboscis and a _______________ system.
Intrinsic Motivation
The drive to engage in an activity for its own sake, deriving pleasure and satisfaction from the activity itself rather than for some external reward.
Extrinsic Motivation
Motivation driven by external rewards such as money, fame, grades, or praise, as opposed to inherent satisfaction.
Fixed
In a context, it refers to something that is securely attached or set in position without any movement; unchangeable.
Growth
A process of increase in size, number, value, or strength.
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