Which example shows an organism that cannot reach homeostasis through internal changes

Answer 1

An example of an organism that cannot reach homeostasis through internal changes is the jellyfish. Jellyfish are classified as marine invertebrates and are primarily composed of a gelatinous substance. They lack complex organs and systems that regulate internal conditions. Instead, they rely heavily on the external environment to maintain their physiological functions. For instance, changes in salinity, temperature, or other external factors can significantly affect their bodily functions, as they do not have mechanisms to internally regulate these changes. This makes them more susceptible to variations in their environment, contrasting with more evolved organisms that can maintain homeostasis through internal regulatory mechanisms.