I WONDER - What Are Jellyfish Made Of? Me Pregunto - De Qué Están Hechas Las Medusas?

Jellyfish are fascinating marine creatures composed mostly of water. Despite lacking a brain or heart, they have a simple nervous system that allows them to function. They do not require a circulatory system as they lack blood, and their thin skin enables them to absorb oxygen directly from the water, eliminating the need for lungs.

What percentage of a jellyfish's body is made up of water?

• 100%

• 95%

• 98%

• 90%

What is the primary diet of jellyfish?

• Seaweed

• Plankton

• Smaller fish and marine life

• Plants

How do jellyfish control their bodies without a brain?

• With a heart

• By absorbing oxygen

• Using a small nervous system

• Through a complex brain

Why don't jellyfish need a heart?

• They are too small

• They have a large brain

• They don't have blood

• They absorb oxygen through their skin

What unique feature allows jellyfish to survive without lungs?

• They breathe through their tentacles

• They have a special organ

• They have gills

• Their skin absorbs oxygen