Q1:Why is reproduction essential for organisms? Reproduction is a fundamental feature of all living organisms. It is a biological process through which living organisms produce offspring’s similar to them. Reproduction ensures the continuance of various species on the Earth. In the absence of reproduction‚ the species will not be able to exist for a long time and may soon get extinct. Q2:Which is a better mode of reproduction sexual or asexual? Why? Sexual reproduction is a better mode of reproduction
Premium Reproduction Reproductive system Gamete
DATE: 8th October‚ 2012 SYLLABUS TOPIC: Food Tests – Semi Quantitative Test AIM: To determine the concentration of glucose present in an unknown sample‚ using a semi quantitative glucose test APPARATUS AND MATERIALS: 4% stock solution of glucose‚ water‚ 6 test tubes‚ ruler‚ water bath‚ solution of unknown concentration (Sample A)‚ Benedict’s reagent METHOD: 1. Solutions of different concentration were made from the stock solution
Free Concentration Solution Solubility
6.08 MAMMALAnimal name | White tiger Scientific Name is Panthera tigris | picture | | Website reference for picture | http://historylessonsnepal.blogspot.com/2011/06/white-tiger.html | Physical traits | Mammals‚ warm blooded‚ carnivores‚ They have blue eyes‚ a pink nose‚ and creamy white fur covered with chocolate colored stripes. | Animal behavior | White Tiger is a solitary animal as this allows this large predator to sneak up on prey more effectively in the dense jungle. Although the
Premium Bird Reproduction Snake
Research Project 2013:Investigating the Pulse Rate In Learners Life Sciences Tara Abraham 10C 9/10/2013 Contents Research question: 2 Introduction to experiment: 2 Hypothesis: 2 Variables: 2 Independent variables: 2 Dependent variables: 2 Fixed (controlled) variables: 3 Apparatus to be used: 3 Method to be used to conduct experiment: 4 How the independent variable s going to be manipulated whilst the dependent variable is being measured. 4 Sample size: 4 Tables for girls 5 Tables for boys 6
Premium Heart rate
Test 3.5 Active Transport‚ Endocytosis and Exocytosis 1. How are active transport proteins similar to enzymes? a. They both are cells b. They both are animals c. Both the shape of the enzymes and transport protein allows binding to specific molecules only d. All of the above 2. What’s another word for transport proteins? a. Slides b. Pumps c. Poles d. train 3. What occurs during exocytosis? a. Process of taking liquids or fairly large molecules into cells b. Process of
Premium Cell membrane Cell Protein
For this experiment petri-dish A is fully exposed to the light source while petri-dish B is partially exposed to the light. Independent Variable: We have chosen our independent variable to be the amount of light exposed to the cress seeds. Our first petri-dish was allowed to be fully exposed to the light surrounding it‚ while the second was fully wrapped in black paper excluding a 0.5cm slit directed towards the sun. Dependent Variable: Our dependent variable is the reaction/actions to
Premium Plant Sun Petri dish
1. The classification system developed by Linnaeus in the early 1700s divided living organisms into plant and animal kingdoms. Today‚ that has been expanded into five kingdoms. Which of the following inventions was most responsible for creating the need for the additional three kingdoms and why? (2 points) (0 pts) Fossil fuel-based transportation made it easier to explore and discover new species. (0 pts) Genetic engineering created new species which then needed new kingdoms. (2 pts) Microscopes
Premium Bacteria Eukaryote
Biomolecules Essay Before this year‚ I could never remember what DNA stood for‚ but now‚ not only do I know that it stands for Deoxyribonucleic Acid‚ I also know that there is another kind of nucleic acid called Ribonucleic Acid. RNA is an imitation for DNA‚ and like all imitations it is not a perfect replica so therefore it has small differences‚ and these small differences house the properties and opportunities for mutations and therefore it causes evolution‚ which allows us to adapt to our
Free DNA RNA
PAGE 1 Skill A: Using and Organizing Techniques‚ Apparatus and Material Title: Comparison of Soil Porosity Date: March 18‚ 2013 Aim: To prove that Sandy Soil would have the mot water after 24 hours. Apparatus/Materials: Three Conical Flasks‚ Three Filter Funnels‚ Cotton Balls‚ Measuring Cylinder‚ Loam Soil‚ 225ml of Water‚ Paper‚ Pencil Methods/Procedures: Obtain and clean out three conical flasks. Label each flask Sand‚ Loam and Clay. Plug three funnels
Premium Erlenmeyer flask Laboratory glassware Measurement
Different methods of transpiration… Water uptake from the soil: Plant roots are surrounded by soil particles. The outmost layer of cells (the epidermis) contains root hair cells that increase the surface area of the root These cells absorb minerals from the soil by active transport using ATP for energy The minerals reduced the water potential of the cell cytoplasm; this makes the water potential in the cell lower than that in the soil. Movement across a root: The movement of water across the
Premium Plant physiology Xylem Cell wall