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Soil erosion demonstration instructions
Soil erosion demonstration instructions

... a. Fill each plastic bin with 3-5 inches of potting soil. b. On the narrower side of both bins, cut out a section of the plastic from the top of the bin wall down to the top of the potting soil and no wider than half the width of the side. When the opposite end of the erosion box is elevated, this m ...
Mollusks and Annelids - Vernon Hills High School
Mollusks and Annelids - Vernon Hills High School

... • Molluscs use true gills, with extensive capillary network and countercurrent flow for gas exchange. • A Mollusk has tubes called siphons that bring water in and out of their bodies so that they can get oxygen and give off carbon dioxide. They have gills that help with this. ...
COVENANT UNIVERSITY COLLEGE OF
COVENANT UNIVERSITY COLLEGE OF

...  No specialized brain or organs associated with the head like eyes, and auditory organs  No distinct heart  Excretion – nephridia- annelids  Gonads are segmentally arranged with no ducts  Body wall has myotomes ...
NAG301 - Soil and Vegetation Ecology Dr. K. Chatterjea LECTURE
NAG301 - Soil and Vegetation Ecology Dr. K. Chatterjea LECTURE

... Humus - a medium for the existence of countless bacteria. There are often three organic layers at different stages of decomposition: litter; duff, and humus. Humus is an end product of organic decomposition. Much of it consists of humic acid in combination with various bases. Humus is important to s ...
DIGESTIVE AND RESPIRATORY SYSTEMS
DIGESTIVE AND RESPIRATORY SYSTEMS

... The digestive system is responsible for obtaining and processing food for the all of the cells in an organism. Structurally it is closely associated with the respiratory system so the two will be studied together. Each system is composed of a series of tubular structures through which materials pass ...
Animal nutrition - Studentportalen
Animal nutrition - Studentportalen

... • In animals such as arthropods and roundworm, which have an exoskeleton secreted by ectoderm: the foregut and hindgut are also lined by exoskeleton • Specialized as grinding, piercing or filtering teeth • Valves and other structures in hindgut • Midgut: from embryonic endoderm (adult gastrodermi ...
G5LSD Lesson 3 – All Systems Go
G5LSD Lesson 3 – All Systems Go

... system, the blood is re-oxygenated. Your stomach, part of the digestive system, constantly interacts with your endocrine system and spreads hormones throughout your body. It's easy to point out a few in your body. The two you think of the most are probably your respiratory and digestive system. A co ...
Formation of Soil lesson 3
Formation of Soil lesson 3

... Parent soil comes from the weathering of the underlying bedrock into smaller pieces. This determines the basic mineral composition. Transported soil is soil that has been moved from its origin to the section of soil. Erosion is the main agent of soil transport. ...
sketch layout of system - the Oklahoma Department of
sketch layout of system - the Oklahoma Department of

... bottom shall be no shallower than _____ inches and no deeper than ______ inches. Septic tank with a liquid capacity of __________ gallons and a lagoon with bottom dimensions of ___________ feet by ___________ feet. Septic tank with a liquid capacity of ___________ gallons and __________ feet of evap ...
Please the Rapporteurs` Report for this session here.
Please the Rapporteurs` Report for this session here.

... Global soil and land related initiatives and agreements are crucial to catalyze actions for the sustainable management and governance of these resources. Examples of these initiatives are the current process to set universal Sustainable Development Goals (SDGs) where soils and land will play a cross ...
Arthropods - Killeen Independent School District
Arthropods - Killeen Independent School District

... glands in head  Antennal glands/Maxillary glands/green glands (decapods)- Excretory pores opening @ base of antennae or maxillae  Some wastes diffuse through gills as well as excretory glands  Waste products: ammonia with some urea and uric acid ...
OLADIPO PRESENTATION SOIL - Soil Science Society of Nigeria
OLADIPO PRESENTATION SOIL - Soil Science Society of Nigeria

... ecosystems services. Yet fragile resource because of its nature (nonrenewable on human time frame). Soil resources are limited and need to be preserved for feeding the growing population of the world by 2050. The sad story is that the limited resource is under increasing ...
teacher exercise: What Is Soil?
teacher exercise: What Is Soil?

... forested, there can sometimes be an E horizon beneath the A horizon. E stands for “eluviation,” which is the movement of dissolved or suspended material out of a horizon. Water entering the soil moves downward through the O and A horizons, and dissolves various soil materials (iron and aluminum oxid ...
Soil
Soil

... evidence relating to minerals, soil, petroleums, and other materials found in the Earth used to answer questions raised by the legal system ...


... Available in: http://www.redalyc.org/articulo.oa?id=180214060008 ...
AG-GH-PS-01.461
AG-GH-PS-01.461

... • Glacial Ice– Carried parent materials all over the northern part of the North America during the four separate periods of glaciations – What is glacial drift? • It is the melting and the shrunk between the glacial periods and transported materials remained in deposits. This is how we got the most ...
Ch 13 Soil Analysis notes
Ch 13 Soil Analysis notes

... Continental sands—formed from __________________________________ rock, usually _______________ Ocean floor sands—formed from____________________ material, usually___________ Carbonate sands—composed of various forms of _________________________________ _____________________—formed when calcium ions ...
a notochord, a dorsal hollow nerve cord, pharyngeal slits
a notochord, a dorsal hollow nerve cord, pharyngeal slits

... The dorsal hollow nerve cord derives from ectoderm that rolls into a hollow tube during development. In chordates, it is located dorsally (at the top of the animal) to the notochord. In contrast to the chordates, other animal phyla are characterized by solid nerve cords that are located either ventr ...
Final Study Guide Chapter 8
Final Study Guide Chapter 8

... 2) The egg then hatches into a free-swimming ciliated larva, the miracidium. 3) The miracidium penetrates the tissues of a snail and transforms into a sporocyst. 4) The sporocyst reproduces asexually into more sporocysts or many rediae. 5) Rediae reproduce asexually into more rediae or into cercaria ...
Animal Diversity – I (Invertebrate Phyla)
Animal Diversity – I (Invertebrate Phyla)

... 10. How many types of nephridia occur in Pheretima? How do you distinguish them? A) In Pheretima, three types of nephridia are present as excretory organs. They are septal, integumentary and pharyngeal nephridia. These nephridia can be distinguished based on the following features. ...
AG-NR-03.411-04.1
AG-NR-03.411-04.1

... – It is materials that may be moved within the soil as with leaching deeper into the soil or being carried upward with evaporating water. ...
Pěstování brambor v seně
Pěstování brambor v seně

... was the manager of the co-op that had been formed of the hacienda chatteled serfs. He now lives in Montana somewhere. They made full use of the method, mounding the rows as much as possible. I think they really smashed production records. The same method can be used with mulches. In my own garden, I ...
SOIL - Gyanpedia
SOIL - Gyanpedia

... is called as sandy soil. • Sand particles quite large . • They cannot fit closely together,so there are large spaces between them.These spaces are filled with air . Water can drain quickly through these spaces . So, sandy soil tend to be light ,well aereated and ...
LandSlides - European Soil Portal
LandSlides - European Soil Portal

... nature of material + presence of fissures and pores Sensitive bedrocks can be Gault Clay and Flish ...
teacher guide - National Agriculture in the Classroom
teacher guide - National Agriculture in the Classroom

... chains occurring within the community. Food webs can be very complicated as seen even in the basic information about the soil food web presented on pages 4 and 5 of Ag@ School. Body size tends to increase as one moves up the food chain. Because individuals of small-bodied species require less energy ...
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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.
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