8. For each of the following phyla of marine invertebrates list the specific adaptations each one has to help it survive in the marine environment
a. Mollusca:
b. Cnidaria:
c. Echinodermata:
d. Arthropoda:
e. Chordata:
Chordata-presence of gill slit
| Sr.No. | Organism | adaptation |
| a | Mollusca | Salinity resistance(ion salt balnce) |
| b | Cnidaria | Cindaria can move in the water because they have a special type
of skeleton called a Hydrodtatic Skeleton. This type of skeleton is a skeleton where muscles surround a water-filled body cavity and the muscles are supported by this cavity. This type of skeleton allows Cnidarians to move quickly and easily through the water. |
| c | Echinodermata | They have interlocking plates of Calcium Carbonate which form a very hard internal skeleton. To make body regid and protective. |
| d | Arthropoda | Hard exoskeleton and jointed appendages for sensing world |
| e | Chordata | presence of gill slits,ammonotelism |
8. For each of the following phyla of marine invertebrates list the specific adaptations each one...