_ are animals that do not adjust their internal osmolality and are isotonic with their environment.

Correct answer: A. Osmoconformers

  • A. Osmoconformers
  • B. Osmoregulators
  • C. Thermoregulators
  • D. Thermoconformers

Explanation

Osmoconformers are animals that do not actively regulate their internal osmolarity, but instead match it to that of their environment. They are typically found in environments that have a stable osmotic environment, such as marine invertebrates.

This question appeared on the NUMS 2019 (cancelled sitting) paper, which you can sit online with every answer explained.

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