Sharks and Rays Lesson with Questions

Multiple Choice

What material are condrichthyian fish skeletons made of?

• Calcium Carbonate

• Cartilage

• Phosphorus

• None of these

Multiple Choice

Where are a stingrays gills and mouth located?

• A stingray's gills and mouth are located on the underside of its body.
• A stingray's gills and mouth are located on its back.
• A stingray's gills are located on the sides and mouth on the top.
• A stingray's mouth is located at the tip of its tail.

Multiple Choice

Stingrays, unlike sharks, do NOT have pectoral fins.

• True

• False

Open Ended

Describe the function of the ampullae of lorenzini.

Multiple Choice

Organisms who exhibit countershading will have a ______ dorsal side and a ______ ventral side.

• light, dark

• dark, light

• dark, dark

• light, light

Multiple Choice

Most sharks are

• viviparous

• oviparous

• ovoviviparous

Multiple Choice

Shark and ray eggs are sometimes called

• seaweed sacks
• ocean pods
• fish nests
• mermaid's purses

Multiple Choice

All sharks are apex predators in their respective ecosystems.

• True

• False

Multiple Choice

What can you infer about the health of the oceans if shark populations are declining overall?

• The oceans are becoming more diverse with fewer sharks.
• Shark decline indicates an increase in fish populations.
• Shark populations are thriving in healthy oceans.
• The health of the oceans is likely declining.

Multiple Choice

Which of the following is NOT a serious threat to shark and ray populations?

• Overfishing for fins and squalene oil

• Pollution and discarded nets

• Natural predators
• Habitat loss

Open Ended

What are your thoughts on declining shark populations? How would try to fix the issue?

Open Ended

What is your favorite shark and/or ray species?