Question

Larvane
Echino -dermata
Shows which type of
Symmetry​

Answer 1

Explanation:

Al-Idrisi is best known in the West as a geographer, who made a globe of silver sphere weighing 400 kilograms for King Roger II of Sicily. Some scholars regard him as the greatest geographer and cartographer of the Middle Ages. He also made original contributions in medicinal plants.

Answer 2

The Echinodermata are a major phylum of marine animals, and they provide many striking examples of inconsistencies between the apparent relationships of adults and larvae. These inconsistencies occur in trying to assess the relatedness, first, of the echinoderms to other phyla, second, of classes within the echinoderms, and, finally, of several pairs of species within the same class. I hope to show that these inconsistencies are resolved by the suggestion that some larval forms were acquired from animals in distinct evolutionary lineages. Before this, however, let us consider what the animals are like, both as adults and larvae.