09-Teachers` Resource sheets on pearls oysters
... from the water. The cilia pass the food particles to the mouth, which is hidden under two horizontal lips, the labial palps. The mouth leads into the stomach contained within a brown mass called the digestive gland. Used food passes along an intestine to pass out of an anus, conveniently placed wher ...
... from the water. The cilia pass the food particles to the mouth, which is hidden under two horizontal lips, the labial palps. The mouth leads into the stomach contained within a brown mass called the digestive gland. Used food passes along an intestine to pass out of an anus, conveniently placed wher ...
Chapter 27: Mollusks and Segmented Worms
... leeches and bristleworms, shown in Figure 27.10, as well as earthworms. Segmented worms are bilaterally symmetrical and have a coelom and two body openings. Some have a larval stage that is similar to the larval stages of certain mollusks, suggesting a common ancestor. The basic body plan of segment ...
... leeches and bristleworms, shown in Figure 27.10, as well as earthworms. Segmented worms are bilaterally symmetrical and have a coelom and two body openings. Some have a larval stage that is similar to the larval stages of certain mollusks, suggesting a common ancestor. The basic body plan of segment ...
Rat Dissection - Abbreviated ng
... ____ 3. Note the eyes with the large pupil and the nictitating membrane found at the inside corner of the eye. This membrane can be drawn across the eye for protection. The eyelids are similar to those found in humans. ____ 4. The ears are composed of the external part, called the pinna, and the aud ...
... ____ 3. Note the eyes with the large pupil and the nictitating membrane found at the inside corner of the eye. This membrane can be drawn across the eye for protection. The eyelids are similar to those found in humans. ____ 4. The ears are composed of the external part, called the pinna, and the aud ...
BONELESS BEAUTIES
... retractile tentacles. Like the octopus, cuttlefish have large and complex eyes that focus by changing the shape of the eyeball. Cuttlefish have a chalk-like internal shell called a cuttlebone that helps give shape to the body or mantel. The cuttlebones are not really bone, but instead are made of ca ...
... retractile tentacles. Like the octopus, cuttlefish have large and complex eyes that focus by changing the shape of the eyeball. Cuttlefish have a chalk-like internal shell called a cuttlebone that helps give shape to the body or mantel. The cuttlebones are not really bone, but instead are made of ca ...
File - Taran D. Thompson
... b. sand dollars c. sea cuccumbers d. sea urchins e. all of these 26. ______________ separates the visceral mass from the secreted shell in mollusks a. mantle b. radula c. caecum d. foot e. esophagus 27. Only class of mollusk that does not have a radula a. Cephalopods b. Gastropods c. Uropods d. Biva ...
... b. sand dollars c. sea cuccumbers d. sea urchins e. all of these 26. ______________ separates the visceral mass from the secreted shell in mollusks a. mantle b. radula c. caecum d. foot e. esophagus 27. Only class of mollusk that does not have a radula a. Cephalopods b. Gastropods c. Uropods d. Biva ...
Mollusks and Annelids
... restrial mollusks are often abundant in places that are at the ocean, even though they are seldom caught. Another least seasonally moist. Some of these places, such as the large mollusk is the bivalve Tridacna maxima, the giant crevices of desert rocks, may appear very dry, but even clam, which may ...
... restrial mollusks are often abundant in places that are at the ocean, even though they are seldom caught. Another least seasonally moist. Some of these places, such as the large mollusk is the bivalve Tridacna maxima, the giant crevices of desert rocks, may appear very dry, but even clam, which may ...
Lab 9. Animal Diversity
... Molluscs (snails, clams, octupuses, squids) are composed of four main body regions: a head, a ventral muscular foot, a visceral mass and the mantle. The mantle is a thin layer of tissue that secretes the shell or internal skeleton. In molluscs, as opposed to arthropods for instance, these regions ...
... Molluscs (snails, clams, octupuses, squids) are composed of four main body regions: a head, a ventral muscular foot, a visceral mass and the mantle. The mantle is a thin layer of tissue that secretes the shell or internal skeleton. In molluscs, as opposed to arthropods for instance, these regions ...
Chapter 28 Mollusks and Annelids
... > What are the key characteristics of annelids? > In addition to segmentation, annelids are coelomates with highly specialized organ systems. Most annelids have external bristles called setae (singular, seta). • Earthworms are coelomates that belong to the ancient phylum Annelida. Most annelid speci ...
... > What are the key characteristics of annelids? > In addition to segmentation, annelids are coelomates with highly specialized organ systems. Most annelids have external bristles called setae (singular, seta). • Earthworms are coelomates that belong to the ancient phylum Annelida. Most annelid speci ...
chapt07 discussion
... – Move with tube feet – Mouth on the bottom, anus on top of body – Biting mouth for grazing– Aristotle’s lantern is the feeding structure made of muscles and mouthpieces – Feed on detritus, encrusting organisms, algae or anything else they can scrape off surfaces ...
... – Move with tube feet – Mouth on the bottom, anus on top of body – Biting mouth for grazing– Aristotle’s lantern is the feeding structure made of muscles and mouthpieces – Feed on detritus, encrusting organisms, algae or anything else they can scrape off surfaces ...
Henry Guan, Akash Kashyap, and Angus Qian
... •Filmaents (cilia) help gills •Osphridia also help •No gills, gasses diffuse through mantle wall ...
... •Filmaents (cilia) help gills •Osphridia also help •No gills, gasses diffuse through mantle wall ...
Ensis directus
... segments powers water intake and outflow; filaments filled with tracheae project into rectum lumen for gas exchange. ...
... segments powers water intake and outflow; filaments filled with tracheae project into rectum lumen for gas exchange. ...
Mollusca - resources
... Locomotion/Musculature • Foot comprised of 3 main body parts – Viceral mass: contains interal organs – Mantle: fold of tissue over visceral mass, includes shell (if present – Mantle Cavity: houses gills and anus and excretory skills ...
... Locomotion/Musculature • Foot comprised of 3 main body parts – Viceral mass: contains interal organs – Mantle: fold of tissue over visceral mass, includes shell (if present – Mantle Cavity: houses gills and anus and excretory skills ...
PHYLUM : mollusca
... bears a pair of long, contractile, filamentous and tapering true or 2nd pair of tentacles. A short, cylindrical stalk, the ommatophore, bearing an eye at its tip is also present. ...
... bears a pair of long, contractile, filamentous and tapering true or 2nd pair of tentacles. A short, cylindrical stalk, the ommatophore, bearing an eye at its tip is also present. ...
LECTURES FOR ZOO 1010—CHAPTER 1
... suspension of the internal organs and networks of blood vessels in mesenteries, the functioning of this space as an efficient hydrostatic skeleton against which opposing groups of circular and longitudinal muscles acted antagonistically, and the development of a muscular, diversified digestive tract ...
... suspension of the internal organs and networks of blood vessels in mesenteries, the functioning of this space as an efficient hydrostatic skeleton against which opposing groups of circular and longitudinal muscles acted antagonistically, and the development of a muscular, diversified digestive tract ...
document
... • This class includes the octopus, squid, cuttlefish, and chambered nautilus. • The only cephalopod with a shell is the chambered nautilus, but some species, such as the cuttlefish, have a reduced internal shell. ...
... • This class includes the octopus, squid, cuttlefish, and chambered nautilus. • The only cephalopod with a shell is the chambered nautilus, but some species, such as the cuttlefish, have a reduced internal shell. ...
mollusks and annelids mollusks and annelids
... species. Among animals, only the phylum Arthropoda has more species. Some mollusks are sedentary filter feeders, while others are fast-moving predators with complex nervous systems. Mollusks are among several phyla of animals known as coelomates. Coelomates are so named because they have a true coel ...
... species. Among animals, only the phylum Arthropoda has more species. Some mollusks are sedentary filter feeders, while others are fast-moving predators with complex nervous systems. Mollusks are among several phyla of animals known as coelomates. Coelomates are so named because they have a true coel ...
Document
... ollusca (mol-lus´ka) (L. molluscus, soft) is one of the largest animal phyla after Arthropoda. There are nearly 50,000 living species and some 35,000 fossil species. The name Mollusca indicates one of their distinctive characteristics, a soft body. This very diverse group includes organisms as diffe ...
... ollusca (mol-lus´ka) (L. molluscus, soft) is one of the largest animal phyla after Arthropoda. There are nearly 50,000 living species and some 35,000 fossil species. The name Mollusca indicates one of their distinctive characteristics, a soft body. This very diverse group includes organisms as diffe ...
Presentation
... opposite reaction. Ask: In this case, what is the action, and what is the reaction? (The action is the movement of water expelled through the siphon. The reaction is the movement of the octopus forward.) As students watch, blow up a balloon, and then release it. Students should observe the balloon r ...
... opposite reaction. Ask: In this case, what is the action, and what is the reaction? (The action is the movement of water expelled through the siphon. The reaction is the movement of the octopus forward.) As students watch, blow up a balloon, and then release it. Students should observe the balloon r ...
27–4 Mollusks - cloudfront.net
... opposite reaction. Ask: In this case, what is the action, and what is the reaction? (The action is the movement of water expelled through the siphon. The reaction is the movement of the octopus forward.) As students watch, blow up a balloon, and then release it. Students should observe the balloon r ...
... opposite reaction. Ask: In this case, what is the action, and what is the reaction? (The action is the movement of water expelled through the siphon. The reaction is the movement of the octopus forward.) As students watch, blow up a balloon, and then release it. Students should observe the balloon r ...
Invertebrates v2
... insects. Insects have three main body parts: a head, a thorax and an abdomen. Insects also have six legs and up to four wings which come out of the thorax. But spiders have two body parts – a joined head and thorax, and an abdomen – and eight legs. ...
... insects. Insects have three main body parts: a head, a thorax and an abdomen. Insects also have six legs and up to four wings which come out of the thorax. But spiders have two body parts – a joined head and thorax, and an abdomen – and eight legs. ...
Mollusk - Kellam High School Oceanography Main Menu
... Most mollusks have separate females and males; gonads are in the visceral mass ~ Sperm or eggs are produced by meiosis. Snails are hermaphrodites bearing both female and male gonads in same individuals. ...
... Most mollusks have separate females and males; gonads are in the visceral mass ~ Sperm or eggs are produced by meiosis. Snails are hermaphrodites bearing both female and male gonads in same individuals. ...
Bivalve lab
... chordates. The coelom is the principal internal body cavity in most of these groups and is completely lined by mesodermal tissue. The coelom arises during embryonic development as a cavity within the developing mesoderm. In higher metazoans, the coelom expands greatly to become the principal interna ...
... chordates. The coelom is the principal internal body cavity in most of these groups and is completely lined by mesodermal tissue. The coelom arises during embryonic development as a cavity within the developing mesoderm. In higher metazoans, the coelom expands greatly to become the principal interna ...
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.