Podcast
Questions and Answers
Which characteristic is unique to whale sharks, similar to human fingerprints?
Which characteristic is unique to whale sharks, similar to human fingerprints?
- The presence of ampullae of Lorenzini.
- Their trance-like state when flipped upside down.
- The spot pattern on their body. (correct)
- Their sandpaper-like skin texture.
How do sharks primarily perceive electromagnetic fields and temperature shifts in their environment?
How do sharks primarily perceive electromagnetic fields and temperature shifts in their environment?
- Through their unique spot patterns.
- Using the rings on their vertebrae.
- With the ampullae of Lorenzini. (correct)
- Via their lateral line system.
What physiological feature distinguishes sharks from most other fish?
What physiological feature distinguishes sharks from most other fish?
- The absence of bones. (correct)
- The presence of vertebrae.
- Their reproductive diversity.
- Their ability to enter tonic immobility.
How do scientists determine the age of a shark?
How do scientists determine the age of a shark?
What is 'tonic immobility' in sharks?
What is 'tonic immobility' in sharks?
Which reproductive strategy involves laying eggs that hatch outside the mother's body without parental care?
Which reproductive strategy involves laying eggs that hatch outside the mother's body without parental care?
What is the primary function of the ampullae of Lorenzini in sharks?
What is the primary function of the ampullae of Lorenzini in sharks?
Approximately how long ago did sharks first appear in Earth's oceans?
Approximately how long ago did sharks first appear in Earth's oceans?
What does the texture of shark skin feel most similar to?
What does the texture of shark skin feel most similar to?
Which of the following is an example of a viviparous species' reproductive strategy?
Which of the following is an example of a viviparous species' reproductive strategy?
Flashcards
Shark Skeleton
Shark Skeleton
Sharks lack bones; their skeletons are made of cartilage.
Tonic Immobility
Tonic Immobility
A trance-like state sharks enter when flipped upside down.
Whale Shark Spots
Whale Shark Spots
Unique spot patterns, like fingerprints, identify individual whale sharks.
Ampullae of Lorenzini
Ampullae of Lorenzini
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Aging Sharks
Aging Sharks
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Oviparous Sharks
Oviparous Sharks
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Viviparous Sharks
Viviparous Sharks
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Study Notes
- Sharks lack bones.
- Shark skin has a texture comparable to sandpaper.
- Sharks enter a trance-like state known as tonic immobility when inverted.
- Whale sharks possess unique spot patterns, akin to fingerprints.
- Small black spots near a shark's nose, eyes, and mouth are the ampullae of Lorenzini.
- The ampullae of Lorenzini are electroreceptor organs that enable sharks to detect electromagnetic fields and temperature changes.
- Sharks first appeared 455 million years ago.
- Scientists determine a shark's age by counting the rings on its vertebrae.
- Sharks display diverse reproductive strategies.
- Some sharks are oviparous, laying eggs.
- Other sharks are viviparous, giving birth to live young.
- Oviparous species deposit eggs that develop and hatch externally, without parental care.
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