Sea Anemone Biology and Behavior

Sea anemones are diverse marine animals found worldwide. They attach to surfaces using a pedal disc and have tentacles with stinging cells for feeding and defense. Anemones form symbiotic relationships with clownfish, providing mutual benefits. They reproduce both sexually and asexually and can live over 50 years. Some can move slowly, but most remain stationary unless conditions change.

What is the primary function of the pedal disc in sea anemones?

• To reproduce

• To attach to surfaces

• To communicate with other anemones

• To capture prey

What is the primary habitat of sea anemones?

• Deep and shallow ocean waters

• Freshwater lakes

• Coral reefs only

• Sandy beaches

How do sea anemones capture their prey?

• By trapping them in their tentacles

• By using stinging cells to paralyze them

• By swallowing them whole

• By using their adhesive foot

Which marine creature is known to have a symbiotic relationship with sea anemones?

• Sea turtles

• Clownfish

• Dolphins

• Sharks

What benefit does a clownfish provide to a sea anemone?

• A place to lay eggs

• Protection from predators

• Food scraps from its meals

• Increased mobility

How do most sea anemones move?

• By floating with the current

• By bending back and forth

• By crawling on the seafloor

• By swimming rapidly

In what ways can sea anemones reproduce asexually?

• By budding

• By laying eggs

• By cloning

• By splitting in half

What is a notable social behavior of sea anemones?

• Forming large colonies

• Using stinging cells to fight each other

• Communicating through sound

• Sharing food with other anemones

How long can some sea anemones live?

• Over 50 years

• Up to 20 years

• Up to 10 years

• Up to 30 years