Question

What is a planula?

   What is a planula?

Biology

Peter H. Raven 7th Edition

Chapter 44, Problem 6

Instant Answer

Solved by Expert Rabeya Zahid

02/21/2022

Step 1

However, I'll try to provide a step-by-step answer based on the correct definition of a planula. A planula is the free-swimming, flattened, ciliated, bilaterally symmetrical larval form of various cnidarian species. Cnidarians include marine animals such as Show more…

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Key Concepts

Cnidarian Life Cycle

In many cnidarians, the life cycle includes a planula stage that follows fertilization. This stage is crucial as it transitions into either a sessile polyp or an adult form through the process of metamorphosis, thereby playing a key role in species dispersal and survival in aquatic environments.

Planula Larva

A planula is a free-swimming, ciliated larval form found in the life cycle of many cnidarians. It exhibits a simple, elongated body that enables movement through water, allowing it to disperse away from parent organisms and eventually settle in a suitable habitat.

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