Phylum Mollusca
Representative Animals: Snails, Octopus, Clams
Habitat: Species of phylum Mollusca can be found in saltwater, freshwater and on land.
Reproductive System: Animals in phylum mollusca reproduce sexually. Some species are dioecious whereas others are hermaphroditic. Many species have internal fertilization and produce eggs.
Respiratory System: Respiration through lungs takes place in species such as snails who live on dry land. Water species use gills.
Digestive System: Complete digestive system. Mouth, esophagus stomach, digestive glands.
Circulatory System: Animals in phylum mollusca have an open circulatory system, but also often have a heart that pumps blood. The heart is key to keep the blood pressure regulated.
Type of Symmetry: The animals in phylum mollusca all have bilateral symmetry.
Type of Coelom: Animals in phylum mollusca are coelomates.
Type of Body Plan: Species in phylum mollusca are protostome, meaning their mouth develops bebore their anus. The species within phylum mollusca contains some form of all organ systems.
Number of body layers: The animals within phylum mollusca have three body layers: ectoderm, mesoderm and endoderm
Specialized Cells/organs: Some species have radula which are part of the digestive system. Clams have a muscular foot that they use for movement if they feel threatened. All of their organ are kept within the foot and rush to one end one movement needs to take place. Some species have a specialized mantle or shell, for example the snail.
Reproductive System: Animals in phylum mollusca reproduce sexually. Some species are dioecious whereas others are hermaphroditic. Many species have internal fertilization and produce eggs.
Respiratory System: Respiration through lungs takes place in species such as snails who live on dry land. Water species use gills.
Digestive System: Complete digestive system. Mouth, esophagus stomach, digestive glands.
Circulatory System: Animals in phylum mollusca have an open circulatory system, but also often have a heart that pumps blood. The heart is key to keep the blood pressure regulated.
Type of Symmetry: The animals in phylum mollusca all have bilateral symmetry.
Type of Coelom: Animals in phylum mollusca are coelomates.
Type of Body Plan: Species in phylum mollusca are protostome, meaning their mouth develops bebore their anus. The species within phylum mollusca contains some form of all organ systems.
Number of body layers: The animals within phylum mollusca have three body layers: ectoderm, mesoderm and endoderm
Specialized Cells/organs: Some species have radula which are part of the digestive system. Clams have a muscular foot that they use for movement if they feel threatened. All of their organ are kept within the foot and rush to one end one movement needs to take place. Some species have a specialized mantle or shell, for example the snail.