Question

what process allows living things to maintain a stable internal environment?
a homeostasis
b digestion
c respiration
d metabolism
e photosynthesis

Explanation:

To solve this, we analyze each option:

• Option a: Homeostasis is defined as the process by which living organisms maintain a stable internal environment (e.g., stable temperature, pH, etc.).
• Option b: Digestion is the breakdown of food, not related to internal stability.
• Option c: Respiration is about energy production (ATP), not internal stability.
• Option d: Metabolism is the sum of all chemical reactions, not specifically about stability.
• Option e: Photosynthesis is for energy (glucose) production in plants, not about internal stability.

Answer:

a. Homeostasis