33_An Introduction to Invertebrates (a)
... • Most gastropods are marine, but many are freshwater and terrestrial species • The most distinctive characteristic of gastropods is torsion, which causes the animal’s anus and mantle to end up above its head; torsion is different from the coiling of a shell • Most have a single, spiraled shell • S ...
... • Most gastropods are marine, but many are freshwater and terrestrial species • The most distinctive characteristic of gastropods is torsion, which causes the animal’s anus and mantle to end up above its head; torsion is different from the coiling of a shell • Most have a single, spiraled shell • S ...
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. ...
Paleo Lecture 2
... ___ 15. Both saddles and lobes are crenulate in A.ceratites B.goniatites C.ammonites D.all of the above E.none of the above ___ 16. In the ?, a telson was developed, the sixth pair of appendages were usually oar-like, and the animals were up to 9 feet long. A.xiphosurans B.branchiopods C.ostracods ...
... ___ 15. Both saddles and lobes are crenulate in A.ceratites B.goniatites C.ammonites D.all of the above E.none of the above ___ 16. In the ?, a telson was developed, the sixth pair of appendages were usually oar-like, and the animals were up to 9 feet long. A.xiphosurans B.branchiopods C.ostracods ...
Cnidaria Kat Hunter Piper
... Phylum life characteristics Digestion- The Cnidarians digestion system is very complex, but also very simple. They all have a one way digestive system. Which means all the food goes through the same way. This process is called Gastrovascular cavity. Excretion- Cnidarians have a canalike cavity with ...
... Phylum life characteristics Digestion- The Cnidarians digestion system is very complex, but also very simple. They all have a one way digestive system. Which means all the food goes through the same way. This process is called Gastrovascular cavity. Excretion- Cnidarians have a canalike cavity with ...
Animals and Animal Diversity
... are protected by a hard shell • All molluscs have a similar body plan with three main parts: – Muscular foot – Visceral mass – Mantle • Many molluscs also have a water-filled mantle cavity, and feed using a rasplike radula ...
... are protected by a hard shell • All molluscs have a similar body plan with three main parts: – Muscular foot – Visceral mass – Mantle • Many molluscs also have a water-filled mantle cavity, and feed using a rasplike radula ...
HMSC invertebrates - Oregon State University
... radially symmetrical except for sea cucumbers which are bilaterally symmetrical. Most animals are symmetrical, the organs and appendages of one side of the body duplicating those of the other side. But in echinoderms and coelenterates (sea anemones) the similar structures radiate outward from the ce ...
... radially symmetrical except for sea cucumbers which are bilaterally symmetrical. Most animals are symmetrical, the organs and appendages of one side of the body duplicating those of the other side. But in echinoderms and coelenterates (sea anemones) the similar structures radiate outward from the ce ...
Digestive System
... In pregnant animals abomasums may get displaced either to left or right side or may result in torsion. In any of these cases feed intake and production will be hampered. Intestine This is one of the sites where internal parasites like round worms get localized and cause harm to the animal. Apart ...
... In pregnant animals abomasums may get displaced either to left or right side or may result in torsion. In any of these cases feed intake and production will be hampered. Intestine This is one of the sites where internal parasites like round worms get localized and cause harm to the animal. Apart ...
HS-SCI-APB-Unit 5 -- Chapter 33- Invertebrates
... groups of similar cells that act as a functional unit and are isolated from other tissues by membranous layers. However, the sponge body does contain several different cell types. For example, lining the interior of the spongocoel are flagellated choanocytes, or collar cells (named for the membranou ...
... groups of similar cells that act as a functional unit and are isolated from other tissues by membranous layers. However, the sponge body does contain several different cell types. For example, lining the interior of the spongocoel are flagellated choanocytes, or collar cells (named for the membranou ...
Study guide
... This is my attempt at a more reasonable study guide and incorporates some questions individuals turned in today. Mollusca Be able to describe the molluscan bauplan Be able to describe the general structure of the molluscan shell and how it grows, including pearl formatio. Be able to describe how mol ...
... This is my attempt at a more reasonable study guide and incorporates some questions individuals turned in today. Mollusca Be able to describe the molluscan bauplan Be able to describe the general structure of the molluscan shell and how it grows, including pearl formatio. Be able to describe how mol ...
Mollusks Annelids
... Another reason mollusks are placed in a single phylum is that their different forms are the results of variations on the same basic body plan. Mollusks are defined as soft-bodied animals that have an internal or external shell. Their name is derived from the Latin word molluscus, meaning soft. Altho ...
... Another reason mollusks are placed in a single phylum is that their different forms are the results of variations on the same basic body plan. Mollusks are defined as soft-bodied animals that have an internal or external shell. Their name is derived from the Latin word molluscus, meaning soft. Altho ...
Which of the following animals are acoelomate, pseudocoelomate
... a. have haploid males that form from unfertilized mictic eggs. b. are entirely parthenogenetic. c. can reproduce parthenogenetically by producing mictic eggs. d. can form cryptobiotic resting eggs (actually zygotes) directly from amictic ...
... a. have haploid males that form from unfertilized mictic eggs. b. are entirely parthenogenetic. c. can reproduce parthenogenetically by producing mictic eggs. d. can form cryptobiotic resting eggs (actually zygotes) directly from amictic ...
Cephalopod Adaptations
... Next to the gills on the side of mantle, look for the stellate ganglion, a mass of nerve cells that control the muscles of the mantle. How is it associated with swimming? If you have a female squid, you will see 2 long, white, oval glands lying on top of the internal organs at the posterior end of t ...
... Next to the gills on the side of mantle, look for the stellate ganglion, a mass of nerve cells that control the muscles of the mantle. How is it associated with swimming? If you have a female squid, you will see 2 long, white, oval glands lying on top of the internal organs at the posterior end of t ...
FREE Sample Here - We can offer most test bank and
... Right iliac region: large intestine, small intestine, greater omentum, and right ureter Left iliac region: large intestine, small intestine, greater omentum, and left ureter Right lumbar region: large and small intestine, right kidney, right adrenal gland, and right ureter Left lumbar region: large ...
... Right iliac region: large intestine, small intestine, greater omentum, and right ureter Left iliac region: large intestine, small intestine, greater omentum, and left ureter Right lumbar region: large and small intestine, right kidney, right adrenal gland, and right ureter Left lumbar region: large ...
sample - Test Bank Team
... Right iliac region: large intestine, small intestine, greater omentum, and right ureter Left iliac region: large intestine, small intestine, greater omentum, and left ureter Right lumbar region: large and small intestine, right kidney, right adrenal gland, and right ureter Left lumbar region: large ...
... Right iliac region: large intestine, small intestine, greater omentum, and right ureter Left iliac region: large intestine, small intestine, greater omentum, and left ureter Right lumbar region: large and small intestine, right kidney, right adrenal gland, and right ureter Left lumbar region: large ...
Mollusks and Annelids - Vernon Hills High School
... • the artery from the ventricle opens and releases blood into tissue-bathing sinuses, eventually draining back into gills. ...
... • the artery from the ventricle opens and releases blood into tissue-bathing sinuses, eventually draining back into gills. ...
Todays lab dissection burrows into the fascinating world of errant
... The Worm's Collar: Identify the various parts of the prostomium. Consider this entire specialized region as an intergrated whole: take careful note of the region's structure and apparent modifications (Compare and contrast its traits with those of Nereis' prostomium). Look at the structure of the an ...
... The Worm's Collar: Identify the various parts of the prostomium. Consider this entire specialized region as an intergrated whole: take careful note of the region's structure and apparent modifications (Compare and contrast its traits with those of Nereis' prostomium). Look at the structure of the an ...
Life on the Edge
... Often appearing as crusty peeling growths on higher rocks and creatures at the Bluff Lichens (2) are actually a remarkable symbiotic association between fungi and Bluegreen Algae. Seagrasses are not algae but true flowering plants and include two species growing within the Barwon Bluff Marine Sanctu ...
... Often appearing as crusty peeling growths on higher rocks and creatures at the Bluff Lichens (2) are actually a remarkable symbiotic association between fungi and Bluegreen Algae. Seagrasses are not algae but true flowering plants and include two species growing within the Barwon Bluff Marine Sanctu ...
The Oral Cavity Proper 2
... and a lower respiratory tract ( trachea onwards) . • Conducting portion transports air. - includes the nose, nasal cavity, pharynx, larynx, trachea, and progressively smaller airways, from the primary bronchi to the terminal bronchioles • Respiratory portion carries out gas exchange. - composed of s ...
... and a lower respiratory tract ( trachea onwards) . • Conducting portion transports air. - includes the nose, nasal cavity, pharynx, larynx, trachea, and progressively smaller airways, from the primary bronchi to the terminal bronchioles • Respiratory portion carries out gas exchange. - composed of s ...
What Is a Flatworm?
... Internal Structures of a Planarian • All flatworms, including this planarian, have organ systems that perform essential life functions • The digestive cavity (left) is branched throughout the body and opens to the outside through the pharynx • The diagram on the right shows the excretory system, ne ...
... Internal Structures of a Planarian • All flatworms, including this planarian, have organ systems that perform essential life functions • The digestive cavity (left) is branched throughout the body and opens to the outside through the pharynx • The diagram on the right shows the excretory system, ne ...
Example
... skeletal muscle (attached to bone) smooth muscle (in internal organs such as intestines, uterus, and blood vessels) cardiac muscle (only in heart) ...
... skeletal muscle (attached to bone) smooth muscle (in internal organs such as intestines, uterus, and blood vessels) cardiac muscle (only in heart) ...
Chapter 27 Power Point
... The brain sits on top of the gut at the front end of the body Two large nerves pass around the gut and connect the brain with a pair of ganglia below From these ganglia, a ventral nerve cord runs the entire length of the worm Nerves from each segment of the worm enter and leave the nerve cord at a p ...
... The brain sits on top of the gut at the front end of the body Two large nerves pass around the gut and connect the brain with a pair of ganglia below From these ganglia, a ventral nerve cord runs the entire length of the worm Nerves from each segment of the worm enter and leave the nerve cord at a p ...
Respiratory System
... and a lower respiratory tract ( trachea onwards) . • Conducting portion transports air. - includes the nose, nasal cavity, pharynx, larynx, trachea, and progressively smaller airways, from the primary bronchi to the terminal bronchioles • Respiratory portion carries out gas exchange. - composed of s ...
... and a lower respiratory tract ( trachea onwards) . • Conducting portion transports air. - includes the nose, nasal cavity, pharynx, larynx, trachea, and progressively smaller airways, from the primary bronchi to the terminal bronchioles • Respiratory portion carries out gas exchange. - composed of s ...
File - Bowie Aquatic Science
... which includes the squid and the octopus, is considered to be the most complex and highly developed group of mollusks. OBJECTIVES • Dissect and identify the organs and major organ systems of the squid. • Describe the major features of the squid phylum. • Determine the function of various squid featu ...
... which includes the squid and the octopus, is considered to be the most complex and highly developed group of mollusks. OBJECTIVES • Dissect and identify the organs and major organ systems of the squid. • Describe the major features of the squid phylum. • Determine the function of various squid featu ...
Biology 3B Laboratory Invertebrates I: Porifera, Cnidaria
... accumulation of nervous tissue and sensory structures occurs. This reflects the importance to the organism of seeing where you are going, rather than where you have been. The Platyhelminthes and all phyla above them on the evolutionary tree are bilaterally symmetrical or have evolved from bilateral ...
... accumulation of nervous tissue and sensory structures occurs. This reflects the importance to the organism of seeing where you are going, rather than where you have been. The Platyhelminthes and all phyla above them on the evolutionary tree are bilaterally symmetrical or have evolved from bilateral ...
Scaly-foot gastropod
Chrysomallon squamiferum, common name the scaly-foot gastropod, is a species of deep-sea hydrothermal vent snail, a marine gastropod mollusc in the family Peltospiridae.According to WoRMS, ""the name Chrysomallon or Crysomallon squamiferum was used in several databases and academic papers prior to 2015. However, the name was first validly published in the sense of the International Code of Zoological Nomenclature by Chen et al. (2015)"".