What is the primary difference between brittle stars and sea stars in terms of vision?

Brittle Stars and Extraocular Photoreception

Interactive Video
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Biology, Science
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7th - 12th Grade
•
Hard

Aiden Montgomery
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Brittle stars have eyes on each arm.
Brittle stars can see using their skin.
Sea stars are completely blind.
Brittle stars use sound to navigate.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term used to describe the ability to sense light without eyes?
Infrared sensing
Ocular photoreception
Extraocular photoreception
Ultraviolet detection
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the initial hypothesis about how brittle stars detect light?
They use sound waves to detect light.
They rely on other animals to guide them.
They have hidden eyes on their arms.
They use a network of nerves below the crystals.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do opsins play in the light detection of brittle stars?
They are enzymes that break down light.
They are light-sensitive proteins that send signals to nerves.
They are pigments that change color.
They are crystals that focus light.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do brittle stars typically respond to light?
They become more active.
They move towards the light.
They change color to blend in.
They move away from the light.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one potential application of studying brittle stars' light detection in robotics?
Developing robots that can see in the dark.
Creating robots that can function without a central control system.
Designing robots that can swim like sea stars.
Building robots that can change color.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the concept of 'graceful degradation' in robotics?
Robots that can gracefully move.
Robots that can degrade gracefully over time.
Robots that can gracefully adapt to new environments.
Robots that can function despite localized damage.
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