Meanings Of Locomotion In An Earthworm ← Locomotion means the act / power of moving from place to place‚ characteristic of the higher animals and some of the lower forms of plant life. ← Earthworm is any one of numerous annelid worms that burrow in soil and feed on soil nutrients and decaying organic matter or any worm of the genus Lumbricus and allied genera‚ found in damp soil. Taxonomy and Geographic Origins Of Earthworm ← L.Terestris : Europe and America. ← Angleworm/Fishworm
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AndrewGuerrero BIO 125 Lab Due November 14‚ 2012 Practical Exam 1. a. The symbionts (Paramecium) of the termite belong to the kingdom Protista b. Paramecium living in the intestines of termites breaks down the cellulose walls of wood fibers releasing proteins that are absorbed by the termites’ digestive system. Paramecium benefit by having an environment to thrive and they ingest the wood fibers for their own nutrition as well. 2. c. An important ecological effect
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The classification of animals The Classification of animals : Animal Kingdom can be split up into main groups‚ vertebrates (with a backbone) and invertebrates (without a backbone). When you think of an animal‚ you usually think of something like a cat‚ a dog‚ a mouse‚ or a tiger. All told‚ around 800‚000 species have been identified in the Animal Kingdom -- most of them in the Arthropod phylum. In fact‚ some scientists believe that if we were to identify all species in the tropical rain forests
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Earthworm is the common name for the largest members of Oligochaeta (which is either a class or subclass depending on the author) in the phylum Annelida. In classical systems they were placed in the order Opisthopora‚ on the basis of the male pores opening posterior to the female pores‚ even 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
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The seven processes of life The seven processes of life are the key to all living organisms: these processes consist of nutrition‚ growth‚ movement‚ respiration‚ reproduction‚ sensitivity and excretion. Although‚ they may be achieved in different ways depending on the organism. These processes happen with in both plants and animals; in each organ‚ cell and organelle. All these processes are interlinked and have a chain effect upon one another. Without one of them the others aren’t possible.
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There are no multicellular plants in the oceans Most are photosynthetic single cells Cambrian is in Paleozoic era Called Cambrian explosion‚ because in this 70 million years. We have an explosion of every multicellular organism. Wednesday October 31st‚ 2012 CAMBRIAN Phanerozoic Eon Eras: Paleozoic (most recent : 550 Ma until now) – multicellular organisms in the oceans The periods in the Paleozoic era are: Cambrian Ordovician: end is one of the 5 mass extinctions. So many organisms
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2010 Study Guide for BSCI207 Midterm 2 Ch. 32: Metazoans Key Concepts: ● Understand the set of characteristics that distinguish the metazoan clade ● Understand processes governing early development of metazoans (cleavage‚ gastrulation‚ etc) ● Be familiar with the phylogenetic tree that organizes relationships between metazoans using their synapomorphies (pg. 697 in book) ● Know the hypotheses that potentially explain metazoan origins ● Know the hypotheses regarding the origins of bilaterians
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32.2.2 Segmentation allowed for redundant systems and improved locomotion Hox genes cause segmentation development 2 advantage of Hox genes Highly segmented animals‚ usually have nearly complete set of organs in theirs each segment of body. This result to less damage in their body‚ since other segment duplicate the damage segment functions Locomotion is more efficient‚ since partitions isolate the segment can contract and expand autonomously. 32.3. The Classification of Animals Animals divided
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Diversity in Living Organisms Q 1 Name the branch of the biology that deals with the classification. Q 2 Who was the first to propose the two-kingdom system of classification? Q 3 Who proposed three-kingdom classification? Q 4 What is meant by triploblastic? Q 5 What is haemocoel ? Q 6 Name the person who has given the five-kingdom classification. Q 7 Which is the largest phylum of animal kingdom? Q 8 What is the function of canal system in sponges? Q 9 What are Gymnosperms
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BHARATHI MATRIC HR. SEC. SCHOOL KALLAKURICHI STD: X SUB: SCIENCE PRE QUARTALY TIME: 3.00 MARK: 100 PART-A I. Choose the correct answer 15x1=15 1. Pick out the wrong statement (a) In a dicot seed there is a short longitudinal whitish ridge is called the Raphael (b) There is a minute opening in dicot seed is known as micropyle . (c) The rudimentary stem portion known as radical. (d) The rudimentary root portion is called radical. 2. The roots of coconut tree are seen
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