Victoria is conducting an experiment on homeostasis in paramecium, which is a type of single-celled organism. which of these observations provides the strongest evidence of a paramecium maintaining homeostasis?

Question

A. / hen a peramecium is a placed in a warm water, it takes on the temperature of the water.
B. hen a water enters the paramecium by osmosis, the organism responds by pumping out the excess water.
C. hen a paramecium is placed in pure water, water moves out of the cell by osmosis.
D. hen a paramecium is placed in pure water, water moves into the cell by osmosis.

Answer 1

The observation that provides the strongest evidence of a paramecium maintaining homeostasis is:

B. When water enters the paramecium by osmosis, the organism responds by pumping out the excess water.

This observation indicates that the paramecium has mechanisms in place to regulate its internal environment despite external changes, actively maintaining balance and preventing excess water accumulation, which is a key aspect of homeostasis.