OESOPHAGUS STOMACH
ECHINODERMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
clam
|
|
|
snail
|
|
|
seastar
|
|
|
squid
|
Detailed explanation-1: -Starfish belong to the phylum Echinodermata. Mollusks are a separate phylum of animals. Although both phyla are made up of invertebrates, differences in their anatomy are why starfish are classified as echinoderms and not mollusks.
Detailed explanation-2: -Which of the following is not a Mollusca? Notes: Sea feather belongs to the phylum Echinodermata.
Detailed explanation-3: -5. Which of the following does not belong to phylum Mollusca? Sol: (d) Sea feather.
Detailed explanation-4: -Starfish are not members of the phylum Mollusca they are members of the phylum Echinodermata. They show radial symmetry unlike molluscs which display bilateral symmetry. Echinoderms are only found in the sea and have never quite made it to land but there are several terrestrial molluscs like snails.