Starfish Quiz: What Do You Know?

Key Points:
Starfish, also known as sea stars, are intriguing and colorful creatures that are commonly found in oceans around the world. With their unique shapes, textures, and characteristics, starfish are a popular subject of curiosity and study.
If you're a fan of these fascinating sea creatures, then this Starfish Quiz is perfect for you! Test your knowledge of starfish with these fun and challenging quiz questions.
From their anatomy to their behavior, let's see how much you really know about starfish!
Quiz Questions
- What is the common name for starfish?
-
- Sea star
- Sea cucumber
- Sea anemone
- Sea urchin
- How many arms do most species of starfish have?
-
- 6
- 5
- 4
- 7
- What is the texture of a starfish's skin?
-
- Rough and spiny
- Slippery and slimy
- Soft and smooth
- Bumpy and uneven
- What is the largest species of starfish?
-
- Crown-of-thorns starfish
- Giant sunflower star
- Red-knobbed starfish
- Chocolate chip starfish
- What is the smallest species of starfish?
-
- Brittle star
- Cushion star
- Parvivipara star
- Bat star
- How do starfish breathe?
-
- With gills
- They don't breathe
- Through their skin gills
- By opening and closing their mouths
- What is the main diet of starfish?
-
- Crustaceans
- Fish
- Nectar
- Plants
- Do starfish have a brain?
-
- No
- They have multiple brains
- Yes
- It's unclear
- What is the purpose of a starfish's tube feet?
-
- To smell
- To see
- To hear
- To move
- What is a group of starfish called?
-
- A flock
- A school
- A herd
- A constellation/galaxy
- What is the most common color of a starfish?
-
- Red
- Green
- Orange
- Blue
- What is the lifespan of a starfish?
-
- 1-2 years
- 10-35 years
- 6-8 years
- 3-5 years
- What is the scientific name for starfish?
-
- Asteroidea
- Ophiuroidea
- Crinoidea
- Echinodermata
- What is the average size of a starfish?
-
- 8-12 inches
- 5-7 inches
- 2-4 inches
- 11-13 inches
- What is the texture of a starfish's arms?
-
- Smooth
- Slimy
- Furry
- Spiny
Interesting Facts About Starfish
Here are some super interesting facts about starfish:
What is the Life Cycle of a Star Fish?
Sea stars reproduce through spawning, in which both eggs and sperm are released into the water. Females have the potential to release as many as 2.5 million eggs.
Once the eggs are fertilized, they develop into larvae that are able to move freely in the water. After around three weeks, the larvae settle down and undergo a transformation to become fully grown adults.
The lifecycle of starfish is intricate and includes two developmental phases before they settle on the ocean floor and mature into adults. Although some species of starfish can adapt well as aquarium pets, only a limited number of starfish can be bred in captivity.
What is the Behavior of a Star Fish?
The absence of a central nervous system in starfish means that their behaviors result from self-organization processes. Starfish have motor organs made up of arms and tube feet that are hierarchically constructed. The coordinated movement of the tube feet is not just random fluctuations but is integral to the collective behavior of the arms.
Because starfish literally have no brain, they wouldn't be capable of having much of a personality such as a dog or a cat would. More notably, you can witness behavioral adaptions in their eating habits as a behavioral response to their environment.
They are predominantly carnivorous and have developed the ability to prey on particular animal species, including mussels, clams, oysters, and sea snails. To feed on these animals, starfish employ their suctioned tube feet to pry open the shells.


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Rebecca Bales
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