ribbon worms
... Acoelomate; with no internal body cavity other than the digestive tract. The spaces between the organs are filled with mesodermal tissue called parenchyma Nervous system consists of a pair of anterior organs called ganglia that are similar to a brain Excretory system of two lateral running canals co ...
... Acoelomate; with no internal body cavity other than the digestive tract. The spaces between the organs are filled with mesodermal tissue called parenchyma Nervous system consists of a pair of anterior organs called ganglia that are similar to a brain Excretory system of two lateral running canals co ...
Invertebrate Phylae
... b. Extracellular digestion – food is broken down outside the cells in a digestive cavity or tract and then absorbed into the body. Mollusks, Annelids, Arthropods and Echinoderms c. Flatworms and Cnidarians are intracellular and Extracellular RESPIRATION A. All animals must exchange oxygen and carbon ...
... b. Extracellular digestion – food is broken down outside the cells in a digestive cavity or tract and then absorbed into the body. Mollusks, Annelids, Arthropods and Echinoderms c. Flatworms and Cnidarians are intracellular and Extracellular RESPIRATION A. All animals must exchange oxygen and carbon ...
Anatomical Position and Directional Terms
... these animals are sessile Radial: divided along any plane, through central axis, into roughly equal halves, these animals are starfish or hydras Bilateral: can be divided down its length into similar right and left halves, these animals can use the anatomical terms such as posterior, ventral, et ...
... these animals are sessile Radial: divided along any plane, through central axis, into roughly equal halves, these animals are starfish or hydras Bilateral: can be divided down its length into similar right and left halves, these animals can use the anatomical terms such as posterior, ventral, et ...
Feeding and Digestion
... digestive system and is then absorbed. i. Gastrovascular cavities a. Some invertebrates, such as cnidarians (jellies), have a cavity with a single opening through which they both ingest food and expel wastes. b. Some cells lining the gastrovascular cavity secrete enzymes and absorb digested food. c. ...
... digestive system and is then absorbed. i. Gastrovascular cavities a. Some invertebrates, such as cnidarians (jellies), have a cavity with a single opening through which they both ingest food and expel wastes. b. Some cells lining the gastrovascular cavity secrete enzymes and absorb digested food. c. ...
Figure 18.1
... plus previously accumulated POM or a high amount of added residues. Rapid decomposition is stimulated by intensive tillage, good soil drainage, coarse texture, and alternating wet and dry conditions. ...
... plus previously accumulated POM or a high amount of added residues. Rapid decomposition is stimulated by intensive tillage, good soil drainage, coarse texture, and alternating wet and dry conditions. ...
Lab 6: Animal Diversity
... Most with a radula (feeding structure with rows of teeth) Used either for scraping up food (snail) or grasping prey (squid) Most free living (not parasitic), most marine ...
... Most with a radula (feeding structure with rows of teeth) Used either for scraping up food (snail) or grasping prey (squid) Most free living (not parasitic), most marine ...
Unit 2 - Edquest
... epiglottis is a flap of skin that covers the windpipe so that food will not enter the lungs. The food is pushed down the esophagus by contractions of muscle tissue. This is called peristalsis. The stomach churns the food mixing it with gastric juices (composed of mucus, hydrochloric acid, water and ...
... epiglottis is a flap of skin that covers the windpipe so that food will not enter the lungs. The food is pushed down the esophagus by contractions of muscle tissue. This is called peristalsis. The stomach churns the food mixing it with gastric juices (composed of mucus, hydrochloric acid, water and ...
SYSTEMS IN ORGANISMS TAKS QUESTIONS SPRING 2003 – 10
... A Circulatory and nervous systems B* Nervous and muscular systems C Muscular and digestive systems D Digestive and circulatory systems ...
... A Circulatory and nervous systems B* Nervous and muscular systems C Muscular and digestive systems D Digestive and circulatory systems ...
Soils
... It consists of leaf litter and other organic material lying on the surface of the soil. ...
... It consists of leaf litter and other organic material lying on the surface of the soil. ...
B11Phylum nematoda
... Basic Nematode Body Plan Germ Layer: ecto, endo and mesoderm Body Plan - Tube within a tube Has 2 openings (mouth and anus) = complete digestive tract Pseudocoelomate Open cavity allows for: - Organ development - Allows nutrients to flow around the organs - Acts as a skeletal structure ...
... Basic Nematode Body Plan Germ Layer: ecto, endo and mesoderm Body Plan - Tube within a tube Has 2 openings (mouth and anus) = complete digestive tract Pseudocoelomate Open cavity allows for: - Organ development - Allows nutrients to flow around the organs - Acts as a skeletal structure ...
Annelida
... • Sperm from testis stored in, and later released from, seminal vesicles • Sperm from other worm stored in seminal receptacles • After separation, sperm from other worm used to fertilize eggs from the ovary ...
... • Sperm from testis stored in, and later released from, seminal vesicles • Sperm from other worm stored in seminal receptacles • After separation, sperm from other worm used to fertilize eggs from the ovary ...
Rat Body Systems INTEGUMENTARY (Outer body covering) Skin
... EYES see color/good DEPTH PERCEPTION (eyes on front of head) ENDOCRINE: The endocrine system in mammals is the most complex. The THYROID GLAND regulates metabolism, but many others such as the PITUITARY, ADRENAL, and PARATHYROID GLANDS also help to control other body organs, growth, development, and ...
... EYES see color/good DEPTH PERCEPTION (eyes on front of head) ENDOCRINE: The endocrine system in mammals is the most complex. The THYROID GLAND regulates metabolism, but many others such as the PITUITARY, ADRENAL, and PARATHYROID GLANDS also help to control other body organs, growth, development, and ...
Arthropods - Green Local Schools
... transfer sperm (male), carry eggs and young (female) • Uropod – propulsion during tail flips ...
... transfer sperm (male), carry eggs and young (female) • Uropod – propulsion during tail flips ...
MIDTERM REVIEW QUESTIONS BLOCK B: Chapter 32 The ability
... 3. A crayfish has teeth in its a. Stomach b. Esophagus c. Uropods d. Green glands 4. How many pairs of appendages are on the cephalothorax of most arachnids? a. Two b. Four c. Six d. Eight 5. Millipedes have a. Two pairs of legs on most body segments b. Long antennae c. A flattened body d. A waxy ex ...
... 3. A crayfish has teeth in its a. Stomach b. Esophagus c. Uropods d. Green glands 4. How many pairs of appendages are on the cephalothorax of most arachnids? a. Two b. Four c. Six d. Eight 5. Millipedes have a. Two pairs of legs on most body segments b. Long antennae c. A flattened body d. A waxy ex ...
Organ Systems
... 4. Finally, all of the digested nutrients are absorbed through the intestinal walls. The waste products of this process include undigested parts of the food, known as fiber, and older cells that have been shed from the mucosa. These materials are propelled into the colon, where they remain, usually ...
... 4. Finally, all of the digested nutrients are absorbed through the intestinal walls. The waste products of this process include undigested parts of the food, known as fiber, and older cells that have been shed from the mucosa. These materials are propelled into the colon, where they remain, usually ...
Organ Systems - BEHS Science
... 4. Finally, all of the digested nutrients are absorbed through the intestinal walls. The waste products of this process include undigested parts of the food, known as fiber, and older cells that have been shed from the mucosa. These materials are propelled into the colon, where they remain, usually ...
... 4. Finally, all of the digested nutrients are absorbed through the intestinal walls. The waste products of this process include undigested parts of the food, known as fiber, and older cells that have been shed from the mucosa. These materials are propelled into the colon, where they remain, usually ...
Back To Organic Farming
... Organically grown food is healthier and commands a premium over conventional food because of its higher mineral content. Organic farming therefore, provided an opportunity to double the income of our farmer, firstly through reduced input costs and secondly through higher returns for his produce. As ...
... Organically grown food is healthier and commands a premium over conventional food because of its higher mineral content. Organic farming therefore, provided an opportunity to double the income of our farmer, firstly through reduced input costs and secondly through higher returns for his produce. As ...
Arthropods - Green Local Schools
... • Swimmeret – create water currents, transfer sperm (male), carry eggs and young (female) • Uropod – propulsion during tailflips ...
... • Swimmeret – create water currents, transfer sperm (male), carry eggs and young (female) • Uropod – propulsion during tailflips ...
Ascaris Lumbricoides
... -Piperazines were originally named because of their chemical similarity with piperidine, a constituent of piperine in the black pepper plant -Generally it acts by paralysing parasites, which allows the host body to easily remove or expel the invading organism. This action is mediated by its agonist ...
... -Piperazines were originally named because of their chemical similarity with piperidine, a constituent of piperine in the black pepper plant -Generally it acts by paralysing parasites, which allows the host body to easily remove or expel the invading organism. This action is mediated by its agonist ...
Chapter 26 Invertebrate PowerPoint Lecture Notes
... funnel (coelomic fluid with waste enters here) ...
... funnel (coelomic fluid with waste enters here) ...
Kingdom Animalia
... • Input (eating) to output (excretion) that flows in one direction vs. a 2-way system ...
... • Input (eating) to output (excretion) that flows in one direction vs. a 2-way system ...
Earthworm
An earthworm is a tube-shaped, segmented worm found in the phylum Annelida. They are commonly found living in soil, feeding on live and dead organic matter. Its digestive system runs through the length of its body. It conducts respiration through its skin. An earthworm has a double transport system composed of coelomic fluid that moves within the fluid-filled coelom and a simple, closed blood circulatory system. It has a central and a peripheral nervous system. The central nervous system consists of two ganglia above the mouth, one on either side, connected to a nerve cord running back along its length to motor neurons and sensory cells in each segment. Large numbers of chemoreceptors are concentrated near its mouth. Circumferential and longitudinal muscles on the periphery of each segment enable the worm to move. Similar sets of muscles line the gut, and their actions move the digesting food toward the worm's anus.Earthworms are hermaphrodites—each individual carries both male and female sex organs. They lack either an internal skeleton or exoskeleton, but maintain their structure with fluid-filled coelom chambers that function as a hydrostatic skeleton.""Earthworm"" is the common name for the largest members of Oligochaeta (which is either a class or a subclass depending on the author). In classical systems, they were placed in the order Opisthopora, on the basis of the male pores opening posterior to the female pores, though the internal male segments are anterior to the female. Theoretical cladistic studies have placed them, instead, in the suborder Lumbricina of the order Haplotaxida, but this may again soon change. Folk names for the earthworm include ""dew-worm"", ""rainworm"", ""night crawler"", and ""angleworm"" (due to its use as fishing bait).Larger terrestrial earthworms are also called megadriles (or big worms), as opposed to the microdriles (or small worms) in the semiaquatic families Tubificidae, Lumbriculidae, and Enchytraeidae, among others. The megadriles are characterized by having a distinct clitellum (which is more extensive than that of microdriles) and a vascular system with true capillaries.Earthworms are far less abundant in disturbed environments and are typically active only if water is present.