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Question
homeostasis practice worksheet - answer key
part 1: multiple choice
- yawning → b. it cools the brain and helps regulate temperature.
explanation: yawning draws in cool air and increases blood flow, which helps lower brain temperature and maintain optimal function.
- goosebumps → b. help the body retain heat.
explanation: goosebumps cause hair to stand up, trapping a layer of air for insulation and helping maintain body temperature.
- blinking → b. keeping the eyes moist and free of debris.
explanation: blinking spreads tears across the eye, keeping it moist and protecting it from dryness or damage.
- stomach acid regulation → b. adjusting acid levels to protect stomach tissue.
explanation: special stomach cells adjust ph to prevent damage and ensure proper digestion
- water balance in the nose → c. by regulating water content in the air breathed.
explanation: the nose adds moisture in dry conditions and absorbs excess water in humid conditions to maintain internal balance.
- El bostezo trae aire frío y aumenta el flujo sanguíneo, lo que ayuda a bajar la temperatura del cerebro y mantener su función óptima.
- Las pieles de gallina hacen que el cabello se erija, atrapando una capa de aire para la insolación y ayudando a mantener la temperatura corporal.
- Parpadeo extiende las lágrimas a través del ojo, manteniéndolo húmedo y protegiéndolo de la sequedad o daño.
- Las células especiales del estómago ajustan el pH para prevenir daños y asegurar una digestión adecuada, regulando los niveles de ácido para proteger el tejido del estómago.
- La nariz agrega humedad en condiciones secas y absorbe el exceso de agua en condiciones húmedas para mantener el equilibrio interno, regulando el contenido de agua en el aire respirado.
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- B. It cools the brain and helps regulate temperature.
- B. Help the body retain heat.
- B. Keeping the eyes moist and free of debris.
- B. Adjusting acid levels to protect stomach tissue.
- C. By regulating water content in the air breathed.