Observations on the breakdown of faeces in bags and buckets held
... more soil and the sack closed off and stored in a safe place (which may be the vault itself). ...
... more soil and the sack closed off and stored in a safe place (which may be the vault itself). ...
Invertebrate PowerPoint
... 4. Two pair of antennae (1 long, 1 short pair) 5. Swimmerets: appendages on the abdomen used for swimming 6. Breathe by gills 7. One pair of large claws 8. Four pairs of walking legs ...
... 4. Two pair of antennae (1 long, 1 short pair) 5. Swimmerets: appendages on the abdomen used for swimming 6. Breathe by gills 7. One pair of large claws 8. Four pairs of walking legs ...
PowerPoint-presentatie
... Soil tillage effects on earthworm populations and species diversity in arable farming systems - Temporal and spatial dimensions Mirjam Pulleman, Stephen Crittenden, Tamilarasi Eswaramurthy, ...
... Soil tillage effects on earthworm populations and species diversity in arable farming systems - Temporal and spatial dimensions Mirjam Pulleman, Stephen Crittenden, Tamilarasi Eswaramurthy, ...
Invertebrate PowerPoint Notes
... Some can reproduce by parthenogenesis – females produce diploid eggs that develop into female organisms without being fertilized by sperm (males do not exist in these species) ...
... Some can reproduce by parthenogenesis – females produce diploid eggs that develop into female organisms without being fertilized by sperm (males do not exist in these species) ...
Vermicomposting - UConn Soil Nutrient Analysis Laboratory
... to start a bin. There are about 1000 red wigglers in a pound and they can consume from 1 to 2 pounds of food wastes per week. Once the initial cost is incurred, it is doubtful that more worms will need to be purchased and they will supply you with an infinite amount of nutrient-rich castings. All yo ...
... to start a bin. There are about 1000 red wigglers in a pound and they can consume from 1 to 2 pounds of food wastes per week. Once the initial cost is incurred, it is doubtful that more worms will need to be purchased and they will supply you with an infinite amount of nutrient-rich castings. All yo ...
The Insect Internally
... This systems rids the body of all biproduct molecules such as protein wastes. They must detoxify wastes to prevent bodily damage prior to evacuation by combining them with other substances unless large amount of water are present to dilute them. ...
... This systems rids the body of all biproduct molecules such as protein wastes. They must detoxify wastes to prevent bodily damage prior to evacuation by combining them with other substances unless large amount of water are present to dilute them. ...
biodiversity - Soil Biodiversity Blog
... nature of organic matter, as well as nutrient inputs, all play a crucial role. The addition of nutrients in the form of fertilisers or manures can significantly increase plant (and animal) production, which in turn will increase organic matter inputs with consequent impacts on the size and activity ...
... nature of organic matter, as well as nutrient inputs, all play a crucial role. The addition of nutrients in the form of fertilisers or manures can significantly increase plant (and animal) production, which in turn will increase organic matter inputs with consequent impacts on the size and activity ...
Soil Tech Note 18A - NRCS
... 4. Added roots also provide more opportunities for sugars, amino acids, proteins, organic acids, etc. to be “sloughed off” into the soil environment which adds to the natural productivity of the soil. 5. Each kind of plant has its own variety of microbes associated with it. 6. Diversity supports ...
... 4. Added roots also provide more opportunities for sugars, amino acids, proteins, organic acids, etc. to be “sloughed off” into the soil environment which adds to the natural productivity of the soil. 5. Each kind of plant has its own variety of microbes associated with it. 6. Diversity supports ...
THE ANIMAL KINGOM - Mrs. Bender's Links to Knowledge
... EGGS, SKIN AND KIDNEYS ARE USED TO CONSERVE WATER ...
... EGGS, SKIN AND KIDNEYS ARE USED TO CONSERVE WATER ...
Crayfish Dissection Lab
... Detach one of the walking legs, and note the small gill that is attached to the leg: ...
... Detach one of the walking legs, and note the small gill that is attached to the leg: ...
Phylum Platyhelminthes
... consisting of a series of tubules. Flame bulbs draw water out of the tissues and into the tubules. Tufts of cilia in the tubules create currents – excess water exits via excretory pores. Primary function of the system is to rid the flatworm of excess water; some waste products are probably removed a ...
... consisting of a series of tubules. Flame bulbs draw water out of the tissues and into the tubules. Tufts of cilia in the tubules create currents – excess water exits via excretory pores. Primary function of the system is to rid the flatworm of excess water; some waste products are probably removed a ...
Mollusks-Segmented worms- Arthropods
... • Squids use their siphon to fire a jet of water, which allows them to swim very quickly ...
... • Squids use their siphon to fire a jet of water, which allows them to swim very quickly ...
THE ANIMAL KINGDOM (I): NON
... These marine animals include sea urchins, sea cucumbers and starfish. Many echinoderms have a set of calcareous plates (with spines or not) that are covered by skin (dermoskeleton). Echinoderms move about using a unique system called the water vascular system or system of ambulacra. It consists on s ...
... These marine animals include sea urchins, sea cucumbers and starfish. Many echinoderms have a set of calcareous plates (with spines or not) that are covered by skin (dermoskeleton). Echinoderms move about using a unique system called the water vascular system or system of ambulacra. It consists on s ...
Bell Pettigrew Museum of Natural History - synergy
... elongated (measuring 1–20cm in length) and cylindrical with a soft cuticle containing chitin. They have a complete digestive system with a mouth and anus, however they do not posses a respiratory, excretory or circulatory system. The body appears segmented , but this is only superficial, forming dis ...
... elongated (measuring 1–20cm in length) and cylindrical with a soft cuticle containing chitin. They have a complete digestive system with a mouth and anus, however they do not posses a respiratory, excretory or circulatory system. The body appears segmented , but this is only superficial, forming dis ...
File
... 19. 2 main characteristics of the class insecta are… 3 body segments (head, thorax, abdomen), 3 pairs of legs attached to the thorax 20. 4 additional characteristics of this class often are…… 1 pair of antennae, 1 pair of compound eyes, 2 pairs of wings attached to the thorax, breathe through trache ...
... 19. 2 main characteristics of the class insecta are… 3 body segments (head, thorax, abdomen), 3 pairs of legs attached to the thorax 20. 4 additional characteristics of this class often are…… 1 pair of antennae, 1 pair of compound eyes, 2 pairs of wings attached to the thorax, breathe through trache ...
Phylum Mollusca "Next to Arthropoda, the phylum Mollusca has the
... usually with definite head; 2.Ventral body wall specialized as a muscular foot, variously modified but used chiefly for locomotion; 3.Dorsal body wall forms the mantle, which encloses the mantle cavity, is modified into gills or a lung, and secretes the shell (shell absent in some); 4.Surface epithe ...
... usually with definite head; 2.Ventral body wall specialized as a muscular foot, variously modified but used chiefly for locomotion; 3.Dorsal body wall forms the mantle, which encloses the mantle cavity, is modified into gills or a lung, and secretes the shell (shell absent in some); 4.Surface epithe ...
Lecture 13, Annelids + Molluscs - Cal State LA
... important for tunneling and other movement in annelids nematodes lack circular muscles + a coelom, so can’t do this ...
... important for tunneling and other movement in annelids nematodes lack circular muscles + a coelom, so can’t do this ...
013368718X_CH27_421-436.indd
... change the underlined word or words to make the statement true. ...
... change the underlined word or words to make the statement true. ...
Viruses and Bacteria
... Dorsal vs. Ventral Earthworm diagram Earthworm digestion Filter feeder Gartrovascular cavity Gastropod examples Mantle Mollusk body cavity Molting Nephridia Nerve net Polyps and Medusa Roundworm digestive tract Scolex Sessile Three types of symmetry ...
... Dorsal vs. Ventral Earthworm diagram Earthworm digestion Filter feeder Gartrovascular cavity Gastropod examples Mantle Mollusk body cavity Molting Nephridia Nerve net Polyps and Medusa Roundworm digestive tract Scolex Sessile Three types of symmetry ...
ANSWERS TO REVIEW QUESTIONS – CHAPTER 39
... mouthparts consist of a pair of mandibles, a pair of maxillae (each of which carries a palp) and a labium derived from a fused second pair of maxillae (and also bearing paired palps). A chitinous plate called the labrum covers these, while the tongue-like hypopharynx lies behind the mouth. The mandi ...
... mouthparts consist of a pair of mandibles, a pair of maxillae (each of which carries a palp) and a labium derived from a fused second pair of maxillae (and also bearing paired palps). A chitinous plate called the labrum covers these, while the tongue-like hypopharynx lies behind the mouth. The mandi ...
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.