Q1. How is a food chain different from a food web?
Q2. Why is transfer of energy in an ecosystem referred to as energy flow, not energy cycling?
Q3. Explain the single greatest threat to species biodiversity today, citing 2 examples.
Q4. Identify four derived characters that all chordates have at some point in their life.
Q5. Is it accurate to define homeostasis as a constant internal environment? Explain.
Q6. Distinguish the overall structure of a gastrovascular cavity from that of an alimentary canal.
Q7. Which division of the autonomic nervous system would likely be activated if a student learned that an exam, they had forgotten about would start in 5 minutes? Explain.
Q8. Explain why a physician might order a white blood cell count for a patient with symptoms of an infection.
Q9. Why is an internal location for gas exchange tissues advantageous for terrestrial animals?