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Carolina Investigations® for AP® Biology: Physiology of the Circulatory System 8-Station Deluxe Kit


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  • Aligned with Big Idea 2 and Essential Knowledge 2.A.1, 2.C.1, 2.C.2, 2.C.3, 2.D.1, and 2.D.3
  • Emphasizes Science Practices 1, 2, 3, and 6

Explore how open and closed circulatory systems maintain homeostasis.

  • Observe differences between circulatory systems by microscopically examining Daphnia and Casper Fish™
  • Evaluate response of Daphnia's circulatory system to various abiotic factors by measuring heart rate

Students use Daphnia and Casper Fish™ to observe the differences between open and closed circulatory systems. In the inquiry activity, students monitor Daphnia's heart rate to investigate the organism's response to various environmental changes. The 8-Station Deluxe Kit includes enough materials for a class of 32 students working in groups of 4, plus 2-1/2-gal aquarium and setup materials for Casper Fish™. Deluxe kit comes with a voucher to request perishable materials later because the aquarium must be established (set up 48 hr) before fish arrive.

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