Jellyfish: Fascinating Sea Creatures

Jellyfish are ancient, diverse marine creatures found worldwide. They are invertebrates, not true fish, and consist mostly of water. Some jellyfish can reproduce both sexually and asexually, with the Turritopsis dohrnii capable of reversing its life cycle, earning it the name 'immortal jellyfish.' Box jellyfish are highly venomous, posing significant risks to humans. Jellyfish blooms can form rapidly, impacting marine environments and human activities. Despite their simplicity, jellyfish remain a subject of scientific intrigue, with many species yet to be discovered.

What is the primary substance that jellyfish are made of?

• Chitin

• Mesoglia

• Keratin

• Collagen

Which term do scientists prefer to use instead of 'jellyfish' to avoid confusion?

• Marine blobs

• Ocean fish

• Sea jellies

• Water creatures

What unique ability does the immortal jellyfish possess?

• Flying

• Photosynthesis

• Telepathy

• Transdifferentiation

How do jellyfish reproduce asexually?

• By cloning

• By budding

• By binary fission

• By laying eggs

Which jellyfish is considered the most venomous marine animal?

• Portuguese man o' war

• Moon jellyfish

• Box jellyfish

• Lion's mane jellyfish

What percentage of a jellyfish's body is water?

• 60%

• 70%

• 80%

• 95%

What is a common fear associated with jellyfish?

• Their color

• Their speed

• Their size

• Their stings

What are groups of jellyfish called?

• Schools

• Pods

• Blooms

• Herds

What is a potential consequence of jellyfish blooms?

• Increased fish population

• Improved water quality

• Clogging fishing equipment

• Decreased ocean temperature

How many species of jellyfish do scientists believe might still be undiscovered?

• 100,000

• 200,000

• 300,000

• 400,000