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3 cards from this section. Quick, good the night before a test.
Define an open circulatory system.
Think about how this system is different from closed.
How many chambers does a fish heart have?
Consider the simplest type of vertebrate.
What characterizes an open circulatory system?
Think of insects and their circulation.
True or False: All vertebrates have a 4-chambered heart.
Recall the heart structures across different vertebrate groups.
Given three organisms, an insect, a bird, and a fish, classify them based on their circulatory systems and explain your reasoning.
Consider the environmental adaptations of each organism.
Describe how a double circulation system benefits mammals compared to a single circulation system found in some lower vertebrates.
Think about the metabolic demands of active animals.
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