Examlex
Which of the following does NOT have an exoskeleton?
Fetus
A prenatal human between the embryonic state and birth, typically from 9 weeks after fertilization until birth.
Trimester
A term of approximately three months, often used to divide the pregnancy period or academic year into three parts.
Movement
An act of changing physical location or position or of having this changed; often in the context of physical activity or migration.
Wakefulness
The state of being awake and aware of the surrounding environment, contrasting states like sleep.
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