List the six animal groups that display bilateral symmetry?

Answer 1

echinoderms, chordates, hemichordates, protostomes, Ecdysozoa
Lophotrochozoa
Platyzoa

Answer 2

We (as all mammals and many other animals), for the most part, possess bilateral symmetry. This means that our left side and right side of the body are more-or-less identical, when viewed at from outside (symmetric positioning of ears, hands, legs and eyes etc). Bilateral symmetry is supposed to be an evidence for complex (animal) life, as it requires complex bio-chemical processes to ensure the symmetry.

Certain microscopic fossils in China (width of a few hairs pressed together!) have turned out to be the oldest examples of such a bilaterian. The remarkable discovery pushes back the genesis of complex animal life by as many as 50 million years

There are three phyla that display bilateral symmetry. They are:
Mollusca (Clams, Snails, Squids, Octopuses)
Arthropoda (Insects, Spiders, Crustaceans )
Chordata (Urochordates, Cephalochordates, Vertebrates)

Among the vertebrates, there are six groups that display bilateral symmetry. They are:
Agnatha
Sharks
Fish
Amphibia
Birds
Mammals

Answer 3

Six Animal Groups

Answer 4

Mollusca, annelida, chordata, arthropoda, hemichordata, nemertea and platyhelminthes. Plus echinodermata which developed secondary radial symmetry.

Answer 5

thes groups show bilateral symmetry:

1)chordates, (mammales/birds/fishes /reptiles/ ampibians)

2)annelida, (polychaeta/oligichaeta/hirudinea)

3)molluscs, (gastropoda/bivalvia/cephalopoda/ polyplacophora/scaphpoda)

4)hexapods&myriapods, (diplopoda/chilopoda/hexapoda)

5)arthropods, (trilobitomorpha/chelicerata/ crustacea)

6)hemichordates, (enteropneusta/pterobranchia
planctosphaeroidea)

Answer 6

For $50 bucks I'll think about it.

Answer 7

http://en.wikipedia.org/wiki/Bilatera