The affect of temperature on the rate of movement of woodlice Aim: The aim of this experiment is to establish whether a change in temperature affects the rate in which woodlouse move. I measured the rate by timing the woodlouse to move a set distance of 20cm‚ and altered the surrounding temperature by submerging a clear tube in water with different temperatures controlled by a water bath. Research: It is to be believed there over 3000 different species of woodlice‚ a total of 42 species
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Gas exchange is a biological process that is essential for the survival of an organism. The purpose of this process is to obtain oxygen from the environment (which is necessary for cellular respiration‚ and to dispose of CO2‚ a bi product of respiration. An efficient gas exchange system has 3 requirements. It must have a large surface area over which the gases can diffuse. A large surface area maximises the amount of area available for the gases to exchange. It must also be moist. Oxygen must first
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Grade 10 Biology Revision Guide Characteristics of Living Organisms Nutrition: Respiration: Excretion: Sensitivity: Movement: Homeostasis: Reproduction: Growth: Taking in food for growth and releasing energy. Burning glucose to release energy. Removing waste material like urea formed during chemical reactions. Responding to changes in the environment. Transport inside cells and moving the body. Control their internal conditions. Increasing the number of organisms. Increasing the number of cells
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have also watched some videos about acid rain? I also should say the most important thing that scientists are doing in their labs. Where acid rain is most effects on which states and does it affect human when we swim in a really high acidic ocean. Acid rain is a mixture of water and gases that have a pH of 5 or lower and it is found in our atmosphere. Acid rain is made out of two main gases nitrogen dioxide which is formed from cars‚ and sulfur dioxide which is made from factories which burn
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aerobic respiration in plants and animals e.g. germinating seeds and mealworms Bio Experiment : Comparing Rate of respiration in mealworms at different temperatures? Mealworms are cold-blooded animals and are unable to maintain a constant core temperature‚ hence respiration would therefore change with temperature. As glucose is oxidised‚ oxygen is used up and carbon dioxide and heat energy is produced. Increment in temperature / production of CO2 or O2 consumption would hence be good indicators
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Chapter 1 – Introduction to Biology List of PEKA experiments: Conducting an experiment to study the fitness level of students Making bread using yeast in the absence and the presence of sugar Number | Activity 1.1 (Experiment) | Pg. | 1 | Title | Conducting an experiment to study the fitness level of students | Aim / Objective of the Study | To study the fitness level of students / To determine cardiovascular fitness by measuring a person’s pulse rate before and after a given period of
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Eliza Solomon EE Notes from texts Biology section: Citation: “Evolutionary Psychology: An Introduction‚ Second Edition” by Lance Workman and Will Reader. Cambridge University Press. Printed in 2004‚ 2nd edition in 2008 in the UK. Published in NYC. “The mind‚ therefore‚ is seen as equipped with the species-specified ‘instincts’ that enabled our ancestors to survive and reproduce and which give rise to a universal human nature. This idea is in sharp contrast to the adhered
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Science course work Aim- To see how the wavelength of visible light affects the rate of growth of aquatic plants Different wavelengths of light will effect to rate of photosynthesis. I will test this by exposing the pondweed to different wavelengths of light to see how it reacts. Method I will do this by passing white light through a filter. The filter will remove all unwanted wavelengths of light leaving the plant exposed to only the desired wavelength of light. I will use three different
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organisms and is the way in which eukaryotes increase their cell numbers‚ either in a population of a single celled organism‚ such as Amoeba or yeast‚ or within the body of a multicellular organism. Growth may be allometric meaning that different parts of the organism grow at different rates. This can be due to mitosis occuring at different rates in different organs. Mitosis is also important during repair of damaged tissue. The total
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food production (pg-15) -calculating energy efficiency (pg-16) Shorter food chains (pg-16) -carbon cycle (pg-17) 4 Enzymes and Digestion…………………………………………….pg-18 -What are enzymes? (Pg-18) -Temperature and enzymes (Pg-18) -Ph and enzymes (Pg-19) -enzymes and respiration (Pg-20) -digestive system (Pg-20) -Enzymes and digestion (Pg-21) -Other substances in digestion (Pg-22) -Enzymes in industry (Pg-23) 5 Homeostasis……………………………………………….…………...pg-24 -Removing waste products (Pg-24) -Controlling
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