0 Questions
Study Notes
- Sharks have a spindle-shaped body with gill slits on the sides and a pointed snout with a crescent-shaped mouth and triangular teeth.
- They have tough, rough skin and a powerful, asymmetrical tail with a pointed fin.
- Sharks do not have a swim bladder and must constantly swim to avoid sinking.
- Most shark species are small, with 80% being less than 1.6 meters in length.
- The largest shark is the whale shark, which can grow up to 20 meters long and weigh 7,000-8,000 kg.
- The smallest shark is the pygmy shark, with mature males only 15 cm long and females 20 cm long.
- Sharks have various tooth shapes, including comb-like, multi-cusped, and flattened cutting teeth.
- Shark teeth are made up of enamel, dentin, and vitrodentine and evolved from placoid scales.
- The teeth are an important classification feature, with eight different types of tooth patterns.
- Fossil evidence suggests that there were giant sharks in the past, with teeth up to 15.24 cm long and estimated body lengths of up to 90 meters.
"Think you know everything about sharks? Test your knowledge with our quiz! Learn fascinating facts about their unique anatomy, tooth patterns, and different species. From the tiny pygmy shark to the massive whale shark, discover the diversity of these incredible creatures. Challenge yourself and see if you can answer questions about the evolution of shark teeth and the existence of prehistoric giant sharks. Dive into the world of sharks with our quiz now!"
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
