w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level .c rs om *0485738200* BIOLOGY Paper 2 Structured Questions AS Candidates answer on the Question Paper. Additional Materials: Electronic calculator Ruler (cm/mm) 9700/21 October/November 2009 1 hour 15 minutes READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name in the spaces provided at the top of this
Premium Trophic level
AP Biology: Chapter 13 - Meiosis and Sexual Life Cycles Overview * The transmission of traits from one generation to the next is called inheritance‚ or heredity * Along with inherited similarity there is also variation * Genetics is the scientific study of heredity and hereditary variation I. 13.1 Offspring Acquire Genes from Parents By Inheriting Chromosomes A. Inheritance of Genes * Parents endow their offspring with coded information in the form of hereditary units
Premium Meiosis Mitosis Chromosome
Introduction A key concept in evolutionary biology is that divergent selective regime will often generate and maintain some type of phenotypic diversity (Langerhans et al. 2003). This divergent selection can lead to differences in phenotypic expression either by a genetic differentiation or phenotypic plasticity (Levins‚ 1968; West-Eberhard‚ 1989: Robinson and Wilson‚ 1994; Orr and Smith‚ 1998; Schluter‚ 2000; cited in Langerhans‚ 2003). Such divergence is significant as it can influence microevolutionary
Premium Fish anatomy Kentucky Measurement
aerobic respiration and those of fermentation. • Understand the relationship between respiration and photosynthesis. Note: You should perform experiments as described in this handout‚ which are adapted from Starr and Taggart’s Lab Manual for Biology (pp.131-142). Answer the questions in this handout as you wait for results to be seen. If this lab is to be used for a lab report‚ consider these questions when compiling the report. Introduction: The first law of thermodynamics states that
Premium Cellular respiration Metabolism Glucose
Enzyme Lab 6 03/13/2013 Report by Mary Jo Anthony I. Introduction II. Materials and Methods III. Results IV. Conclusion and Discussion Introduction Background Information: This lab allowed us to study chemical reactions and how catalysts will affect the rate of these reactions. The reaction we studied is the breakdown of hydrogen peroxide to water and oxygen and it is vital to life. The molecule hydrogen peroxide is a molecule that is toxic
Premium PH Enzyme Chemical reaction
A2 BIOLOGY CORE PRACTICAL SUMMARY Name of practical Independent & dependent variables Observing patterns by Ecological sampling Random sampling Systemic sampling Other variables to be controlled Abiotic factors e.g. light‚ temperature‚ soil water‚ humidity‚ O2 concentration‚ pH‚ aspect‚ slope angle equipment Gridded Quadrat Tape measure Point quadrat Pitfall trap Sweep Net Pooter Tullgren funnel Baermann funnel Method and outcome Several methods. 1 random sampling = set up grid using
Premium DNA Oxygen
#1 A. Effects and symptoms B. Treatment for effects and symptoms Body paragraph #2 A. Living with Lupus Interview Body paragraph #3 A. ITP- Autoimmune disease related with Lupus Conclusion Brendan Kelley 11/22/10 Intro to Biology Lupus Many people look past these rare diseases as if they are simply a myth but they are but all too real. This disease is called Systemic Lupus erythmatosus‚ but is called Lupus for short. An autoimmune disease such as Lupus weakens your body’s
Premium Immune system Systemic lupus erythematosus Blood
Name: _______________________ IB DP Biology: Ecology Test – Paper 1 40 Points 45 Minutes 1.Which phylum does the plant below belong to? A.AngiospermophytaB.BryophytaC.ConiferophytaD.Filicinophyta2.What is a community composed of? A.Habitats B.Populations C.Abiotic factors D.Biotic and abiotic factors 3.Which of the following is the best definition of a population? A.A group of individuals that can interbreed and produce fertile offspring B.The number of individuals of the same species
Premium Food chain Trophic level Population
Standard Level Biology Design Lab: How do Smarties and M&Ms compare when examined in 5 areas: mass‚ shell solubility‚ volume‚ density‚ and nutrition facts? ‚ Erin MacNeil SL Biology Kathy DeGrasse Halifax Grammar School March 3rd‚ 2013 Section 1.1 Planning (a) * Introduction * Research Question * Hypothesis * Explanation of Hypothesis * Variables Introduction: In this lab‚ M&Ms and Smarties will be compared in five different ways: mass‚ shell solubility
Premium Arithmetic mean Standard deviation Microsoft Excel
Biology Plant and Animal Cells Prokaryotes: No nucleus or other membrane Eukaryotes: has a nucleus and other organelles Plant cells have cell wall and chloroplast while animals cells don’t Organelles Cytoplasm: suspends organelles in cell Endoplasmic Reticulum: transports materials throughout the cell Nucleus: stores genetic data and performing mitosis Mitochondria: converts glucose with oxygen to make energy for cell Cell membrane: support cell and allow diffusion Chloroplast: absorbs
Premium Cell Light Ray