Answer:
Examples of vestigial structures include the human appendix, the pelvic bone of a snake, and the wings of flightless birds. Vestigial structures can become detrimental, but in most cases these structures are harmless; however, these structures, like any other structure, require extra energy and are at risk for disease.
Explanation:
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Answer:
Purposes that work to maintain homeostasis include the regulation of temperature, maintaining healthy blood pressure, maintaining calcium levels, regulating water levels, defending against viruses and bacteria.
Explanation:
Metabolic pathways stimulate cell division.
Answer:
How bright the star appears at a standard distance of 32.6 light years or 10 parsecs.
Explanation:
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