What is a Mollusk?
... a ventral structure for locomotion Some have an open circulatory system, blood moves through vessels & into open spaces around body organs Others have a closed circulatory system, blood moves through the body enclosed entirely in blood vessels ...
... a ventral structure for locomotion Some have an open circulatory system, blood moves through vessels & into open spaces around body organs Others have a closed circulatory system, blood moves through the body enclosed entirely in blood vessels ...
Linking Learning Areas – Suggested Activities
... together. The two shells are normally the same shape. Unlike some of the sea slugs and sea snails bivalves have no head, tentacles or eyes. Members of the chiton class have 8 armoured plates to protect the muscular foot which holds the chiton to its substrate. Cephalopods are shellfish too, although ...
... together. The two shells are normally the same shape. Unlike some of the sea slugs and sea snails bivalves have no head, tentacles or eyes. Members of the chiton class have 8 armoured plates to protect the muscular foot which holds the chiton to its substrate. Cephalopods are shellfish too, although ...
Phylum Mollusca: Macroevolution Module
... Short Answer 1. The earliest animals on Earth had either asymmetrical bodies or radial symmetry, but many animal lines eventually adopted a cephalized body with bilateral symmetry. What were the advantages of this new body plan? Explain. ______________________________________________________________ ...
... Short Answer 1. The earliest animals on Earth had either asymmetrical bodies or radial symmetry, but many animal lines eventually adopted a cephalized body with bilateral symmetry. What were the advantages of this new body plan? Explain. ______________________________________________________________ ...
Mollusks-Segmented worms- Arthropods
... Cretaceous extinction, but have been increasing in the 65 million years since ...
... Cretaceous extinction, but have been increasing in the 65 million years since ...
Higher invertebrates
... • clams, oysters, scallops, abalone, squid, octopus, snails • Body plan—head, foot (classified by this), visceral mass w/ organs (digestive, circulatory, reproductive) • Many have shell (secreted by mantle) • Gills to obtain oxygen from water ...
... • clams, oysters, scallops, abalone, squid, octopus, snails • Body plan—head, foot (classified by this), visceral mass w/ organs (digestive, circulatory, reproductive) • Many have shell (secreted by mantle) • Gills to obtain oxygen from water ...
higher invert. notes
... • clams, oysters, scallops, abalone, squid, octopus, snails • Body plan—head, foot (classified by this), visceral mass w/ organs (digestive, circulatory, reproductive) • Many have shell (secreted by mantle) • Gills to obtain oxygen from water ...
... • clams, oysters, scallops, abalone, squid, octopus, snails • Body plan—head, foot (classified by this), visceral mass w/ organs (digestive, circulatory, reproductive) • Many have shell (secreted by mantle) • Gills to obtain oxygen from water ...
Phylum Mollusca
... same phylum? Share similar developmental stages Many of their lifecycles begin with a trochophore (free-swimming larval stage) ...
... same phylum? Share similar developmental stages Many of their lifecycles begin with a trochophore (free-swimming larval stage) ...
mollusks ppt - Petal School District
... Huge phylum, wide variety of shapes/sizes ~85,000 different species ...
... Huge phylum, wide variety of shapes/sizes ~85,000 different species ...
Molluscs Essential Questions Skeleton OUtline
... • Some molluscs have __________________that only detect light and some, like the octopus, have eyes with __________________, __________________, and __________________. 7. How do molluscs reproduce? • Most molluscs reproduce ________________by releasing sperm and egg into the surrounding water • Onc ...
... • Some molluscs have __________________that only detect light and some, like the octopus, have eyes with __________________, __________________, and __________________. 7. How do molluscs reproduce? • Most molluscs reproduce ________________by releasing sperm and egg into the surrounding water • Onc ...
Molluscs
... inject more wastes into it, and eject it into the mantle cavity for excretion into the environment Example of mollusc “multi-tasking” – using organ systems for more than one purpose ...
... inject more wastes into it, and eject it into the mantle cavity for excretion into the environment Example of mollusc “multi-tasking” – using organ systems for more than one purpose ...
chapter 10 molluscs - Weber State University
... 1. This class includes squids, octopuses, nautiluses, devilfish and cuttlefish. a. Architeuthis, the giant squid has eyes up to 10 inches in diameter—the largest in the Animal Kingdom. b. The mantle alone is up to 6 meters in length. c. The squid Loligo (cuttlefish) is only about 30 centimeters long ...
... 1. This class includes squids, octopuses, nautiluses, devilfish and cuttlefish. a. Architeuthis, the giant squid has eyes up to 10 inches in diameter—the largest in the Animal Kingdom. b. The mantle alone is up to 6 meters in length. c. The squid Loligo (cuttlefish) is only about 30 centimeters long ...
Biology\Mollusks & Echinoderms
... - have gills (aquatic snails) or modified lungs (terrestrial snails) which must be kept moist for gas exchange (respiratory system). In dry times, snails pull into their shell & seal the opening with a mucus plug. - open circulatory system – blood does not remain in vessels during circulation. It sp ...
... - have gills (aquatic snails) or modified lungs (terrestrial snails) which must be kept moist for gas exchange (respiratory system). In dry times, snails pull into their shell & seal the opening with a mucus plug. - open circulatory system – blood does not remain in vessels during circulation. It sp ...
Hypothetical ancestral mollusc (HAM)
... They construct burrows in soft marine sediments which they inhabit head downwards. They ingest sediment, or may be selective carnivores or scavengers. Many typical molluscan characteristics are either absent or reduced: no shell, no foot, and the mantle covers the entire body. Lacking a foot, they m ...
... They construct burrows in soft marine sediments which they inhabit head downwards. They ingest sediment, or may be selective carnivores or scavengers. Many typical molluscan characteristics are either absent or reduced: no shell, no foot, and the mantle covers the entire body. Lacking a foot, they m ...
presentation source
... •Some kinds of cilia on the gills are used to trap food particles suspended in the water and move the trapped food over the surface of the gills toward food grooves • Once here, food is directed anteriorly toward the mouth • On route to the mouth cells in the gills secrete copious amounts of mucous, ...
... •Some kinds of cilia on the gills are used to trap food particles suspended in the water and move the trapped food over the surface of the gills toward food grooves • Once here, food is directed anteriorly toward the mouth • On route to the mouth cells in the gills secrete copious amounts of mucous, ...
The Phylum Molluska - MUGAN'S BIOLOGY PAGE
... • Some swarm together to breed, some seek partners, and few fertilize themselves • Some are immobile such as oysters and mussels can produce both female and male sex cells in different periods of its life. They will shed their sex cells and the tides will take them to where the sperm meets the egg a ...
... • Some swarm together to breed, some seek partners, and few fertilize themselves • Some are immobile such as oysters and mussels can produce both female and male sex cells in different periods of its life. They will shed their sex cells and the tides will take them to where the sperm meets the egg a ...
Mollusc lab
... External anatomy – mantle, foot, pneumostome (use?), anus, shell, tentacles, eyes, genital aperture Internal anatomy – see model of dissected snail In some cases, it may be possible to remove the d ead animal from i ts shell using curved forceps. If this is not possible, slowly break the shell from ...
... External anatomy – mantle, foot, pneumostome (use?), anus, shell, tentacles, eyes, genital aperture Internal anatomy – see model of dissected snail In some cases, it may be possible to remove the d ead animal from i ts shell using curved forceps. If this is not possible, slowly break the shell from ...
Ch 35 Mollusks and Annelids
... respire with gills (aquatic) or exposed blood vessels (terrestrial) by diffusion we eat muscular foot “escargot” ...
... respire with gills (aquatic) or exposed blood vessels (terrestrial) by diffusion we eat muscular foot “escargot” ...
Phylum Mollusks
... Once fertilized, the egg becomes a free-swimming larvae In tentacle mollusks and certain snails, fertilization takes place inside of the female Some can be hermaphroditic ...
... Once fertilized, the egg becomes a free-swimming larvae In tentacle mollusks and certain snails, fertilization takes place inside of the female Some can be hermaphroditic ...
BIO 29 Mollusk Annelid
... Adductor muscles located on the opposite side of the opening halves cause great contractions and can even help scallops travel from place to place. Siphon tube, opposite the foot of a bivalve is a hollow tube to draw in water and filter prey. ( No radula, so they ...
... Adductor muscles located on the opposite side of the opening halves cause great contractions and can even help scallops travel from place to place. Siphon tube, opposite the foot of a bivalve is a hollow tube to draw in water and filter prey. ( No radula, so they ...
Incomplete outline Mollusks and Annelids
... _________(mother of pearl). Also on insides of shells. Layers added until completely enclosed In fine pearls the nacre has tiny, overlapping mineral crystals that act like __________, iridescence Best from Pinctada – g ...
... _________(mother of pearl). Also on insides of shells. Layers added until completely enclosed In fine pearls the nacre has tiny, overlapping mineral crystals that act like __________, iridescence Best from Pinctada – g ...
Mollusks
... year, a chiton may not move more than ten feet. They can detect the presence of light with primitive eyes embedded in the shell plates. ...
... year, a chiton may not move more than ten feet. They can detect the presence of light with primitive eyes embedded in the shell plates. ...
Chapter 29
... 3. Coelom small and filled with fluid and internal organs. 4. Jointed appendages that function in locomotion, feeding or copulatory organs. 5. Exoskeleton secreted by the epidermis and made of protein, chitin, lipids and minerals; periodic molting to allow growth. 6. Respiratory system varied: marin ...
... 3. Coelom small and filled with fluid and internal organs. 4. Jointed appendages that function in locomotion, feeding or copulatory organs. 5. Exoskeleton secreted by the epidermis and made of protein, chitin, lipids and minerals; periodic molting to allow growth. 6. Respiratory system varied: marin ...
BIOL 202 LAB 10 Mollusca and Annelida
... environment has very few existing competitors and the introduced organisms are able to quickly disperse into different areas. Over many generations, these organisms become highly specialized to their particular surroundings and divergent forms arise. Molluscs branched off the main animal line over 5 ...
... environment has very few existing competitors and the introduced organisms are able to quickly disperse into different areas. Over many generations, these organisms become highly specialized to their particular surroundings and divergent forms arise. Molluscs branched off the main animal line over 5 ...
File
... also very protective of their eggs. A mother will guard, clean, and supply fresh water to her eggs until they hatch. By this time she hasn’t eaten in so long that she becomes weak and dies. ...
... also very protective of their eggs. A mother will guard, clean, and supply fresh water to her eggs until they hatch. By this time she hasn’t eaten in so long that she becomes weak and dies. ...
Cephalopod size
Size has been one of the most interesting aspects of cephalopod science to the general public. This article lists the largest cephalopods from various groups, sorted in order of mantle length, total length, weight, and shell diameter. Extinct taxa are also included.