Consider a Biologist Who Is Studying a Fish

question 21

Essay

Consider a biologist who is studying a fish. The biologist conducts an experiment with four treatments in artificial ponds of the same size. In the first treatment he adds 10 fish to each pond. In the second treatment he adds 100 fish to each pond. In the third treatment he adds 10 fish and additional food. In the fourth treatment he adds 100 fish and additional food. At the end of the experiment he finds that female fish in ponds with only 10 fish produce many more eggs than female fish in ponds with 100 fish. However, adding food did not alter the number of eggs each female fish produced. Explain what this experiment tells us about how these fish are affected by density-independent, positive density-dependent, or negative density-dependent factors.

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Definitions:

Daily Weights

The practice of measuring and recording a person's body weight regularly, often daily, to monitor health and wellness.

Graphic Record

Charting mechanism that allows for the recording of vital signs and weight in such a manner that caregivers can quickly note changes in the patient's status.

Patient Care Summary

A comprehensive overview of a patient's healthcare journey, including treatments, medications, diagnoses, and healthcare provider notes.

Lortab

A prescription medication combining hydrocodone and acetaminophen, used to treat moderate to severe pain.