AP Success - AP Biology Conceptual Analysis: Systems Interact - Circulatory
Fish have a unique circulatory system that allows them to extract oxygen from water through their gills. This system is a single-loop system, where the heart pumps the blood to the gills, and from there, it flows to the rest of the body before returning to the heart.
Question 1
Describe the process of oxygen extraction in fish through their gills.
Question 2
In a fish tank, the oxygen level suddenly drops. Explain the impact of this change on the fish's circulatory system and its ability to survive.
Question 3
Predict the possible changes in the fish's circulatory system if it evolves to live in an environment with low oxygen levels.
Question 4
Some scientists claim that fish have a more efficient circulatory system compared to terrestrial animals due to their single-loop system. Provide reasoning to justify their claim.
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