Phylum Mollusca
The basics
Body plan:
-Bilaterally symmetrical
-Body has multiple cell layers, tissues, and organs
-Body without cavity (acoelomate)
Habitat:
-Varies widely
-Many marine enviroments
-Snails and slugs on land in damp, dark places
Feeding:
-Land Mollusks eat plants, fruits, and vegetables
-Use radulae (large tongue-like structure covered with teeth) to run over surface of foods
Reproduction:
-Bivalves are hermaphrodites
-Release both egg and sperm at once externally
-This releases chemicals that tell other bivalves to release eggs and sperm
-Bilaterally symmetrical
-Body has multiple cell layers, tissues, and organs
-Body without cavity (acoelomate)
Habitat:
-Varies widely
-Many marine enviroments
-Snails and slugs on land in damp, dark places
Feeding:
-Land Mollusks eat plants, fruits, and vegetables
-Use radulae (large tongue-like structure covered with teeth) to run over surface of foods
Reproduction:
-Bivalves are hermaphrodites
-Release both egg and sperm at once externally
-This releases chemicals that tell other bivalves to release eggs and sperm
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WOW!
- There are eight groups of Molluscas today
- The body of most Molluscas consist of two parts: a head foot and visceral mass
- Molluscas have a mouth that secretes a hard shell that covers and protects visceral mass
- They have bilateral symmetry
- Use slime like substance for a variety of purposes
- Scientists are not entirely sure who the closest living relatives to the Molluscas are
- Approximately 100,00 species
- Some Molluscas do not have a shell
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- The body of most Molluscas consist of two parts: a head foot and visceral mass
- Molluscas have a mouth that secretes a hard shell that covers and protects visceral mass
- They have bilateral symmetry
- Use slime like substance for a variety of purposes
- Scientists are not entirely sure who the closest living relatives to the Molluscas are
- Approximately 100,00 species
- Some Molluscas do not have a shell
-