Prokaryotic cells DO NOT have centrioles, cytoskeleton, cilia or vesicles but they DO contain a prokaryotic flagella.
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Answer:
Hypothalamus
Explanation:
The hypothalamus is involved in different daily activities like eating or drinking, in the control of the body's temperature and energy maintenance, and in the process of memorizing and in stress control. It also modulates the endocrine system through its connections with the pituitary gland.
X-rays were discovered by accident (by Wilhelm Rontgen).
