Chapter II Research Body Chalk- is a soft‚ white‚ porous sedimentary rock‚ a form of limestone composed of the mineral calcite. Calcite is calcium carbonate or CaCO3. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite plates shed from micro-organisms called coccolithophores. It is common to find chert or flint nodules embedded in chalk. Chalk can also refer to other compounds including magnesium silicate and calcium sulfate. Chalk has greater resistance
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Cane toads in Australia From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search The cane toad (Bufo marinus) is an invasive species in Australia. The cane toad is the largest species in the family Bufonidae. Adult cane toads are usually heavy-built and weigh an average of up to 1.8 kg. (4 lbs.). Their size may vary from 15–23 cm.(4-9 in.) and their skin is warty. The coloration on their back and sides may vary from olive-brown or reddish-brown‚ gray‚ and yellow while their bellies
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A-LEVEL BIOLOGY LAB REPORT NAME: NURUL AYUNI BT SABRI GROUP: 11SC4 TITLE: THE EFFECT OF CAFFEINE ON HEART RATE LECTURER : MDM ZAKIAH BINTI ZAKARIA TITLE The effect of caffeine on heart rate OBJECTIVE To determine the effect of caffeine on heart rate of daphnia INTRODUCTION Caffeine‚ medically known as trimethylzanthine. Its chemical formula is C8H10N4O2. When in pure form‚ caffeine is a white crystalline powder that taste very bitter. 1The most common way
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Unit 1: Biochemistry Review Chemical Bonding Three types of bonds Ionic bond: 2 oppositely charged atoms (Na and Cl) Polar covalent: Unequally shared electrons (H and O) Non polar covalent: Equally shared electrons (C and C) or similar electronegativity Electronegativity and chemical bonding Electronegativity is a measure of the strength in which an atom can attract electrons. A difference of < 0. 5 is non polar covalent bond A difference of 0.5 – 1.7 is polar covalent bond A difference of > 1
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2.) A Brief List of 21 Animal Phyla A. Invertebrate Phyla Parazoa: Simple animals without a digestive cavity. 1. Phylum Porifera (Sponges) Simple multicellular animals that spend their lives anchored to a rock or ocean bottom; they are mostly marine but some species live in fresh water; sponges have radial symmetry with a cylindrical‚ globose or irregular body containing an internal skeleton of minute spicules made of calcium carbonate‚ silica‚ or a fibrous collagen protein called spongin; the
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EFFECT OF DIFFERENT TRANSPORT METHOD CONDITION ON SURVIVAL OF JUVENILE SHRIMP (Penaeus indicus) A Thesis Presented to the Faculty of Special Science Class Iloilo National High School La Paz‚ Iloilo City In Partial Fulfillment of the Requirements for Graduation In High School Jc Belle Traspaderme Anasario Tria Gracia Gabitanan Lubas March 2012 Approval Sheet This thesis entitled “EFFECT OF DIFFERENT TRANSPORT METHOD CONDITION ON SURVIVAL OF JUVENILE SHRIMP (Penaeus
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ANS 3440 COMPREHENSIVE FINAL EXAM STUDY HANDOUT This handout is prepared for you as a guide to assist you in studying for the final exam in this class. If you are knowledgeable in the following areas then you should be well prepared for the final exam. The questions that I have listed here are the most important ones that we have had during the semester. The concepts that are involved in these questions are what you will hopefully remember from this nutrition course long after your college
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Basic chemistry of a cell Properties of water – – – Life on Earth began in water and evolved there for 3 billion years before spreading onto land. Modern life‚ even terrestrial life‚ remains tied to water. All living organisms require water more than any other substance. Human beings for example‚ can survive for quite for a few weeks without food‚ but only a week or so without water. – – – Water is deceptively simple. It is shaped something like a wide V‚ with its two hydrogen atoms joined
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dehydrated in dry conditions‚ and their outer shells aren’t waterproof (1). Therefore damp environments are preferable for woodlouse to survive. The structure of woodlice are similar to all arthropods‚ the body is split up into segments‚ with an exoskeleton and jointed limbs. Firstly‚ the head and next the pereon (thorax)‚ the third is the pleon (abdomen). Also‚ woodlice are often described to have a structure shown in figure 1. Porcellio scaber contain two pairs of antennae although second pair is
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Question 1WRONG | Rice‚ the staple food of many Filipinos‚ could be categorized to belong in: Kingdom – Plantae Phylum – Anthophyta Class – Monocotyledonae Order – Glumiflorae Family – Poaceae Genus – Oryza Species – Sativa Both rice and corn belongs to the class Monocotyledonae‚ then they must also belong to the same _________. | Genus | | Family | | phylum | | species | Question 1 Explanation: if rice and corn belong to the same class‚ then they must also belong to the same phylum
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