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Free Essays on Ap Bio Lab Report Diffusion And Osmosis for students.
government with initial data on the feasibility and curre nt capability of commonly used radars to detect chemical-biological attack," said an Army statement.
In the case of manual measurement procedures for inorganic gases, the substance to be measured is normally adsorbed during the sampling in a solution or solid material. In most cases a photometric determination is made after an appropriate colour reaction. Several manual measurement procedures have special significance as reference procedures. Because of the relatively high personnel cost, these manual procedures are conducted only rarely for field measurements today, when alternative automatic procedures are available. The most important procedures are briefly sketched in .
AP Biology 2004-2005 AP Biology Lab Review.
Industrial societies manufacture huge quantities of goods. Once used, these products arecast away. Hence, on one hand we substract great amounts of resources from nature, on theother hand we make enormous heaps of garbage which pollute the environment. If you thinkof it, a lot of materials which are discarded could be reused. In fact, metals, plasticand glass can be used in manufacturing new items. Paper and fabric can be turned back intopulp and fibers, and reassembled into new products. Organic wastes of kitchen, usuallymade of vegetable and animal substances, and garden material, can be composted and used asfertilizer. Wood can be burned, yielding electrical energy, heat and carbon dioxide whichwill be used by other plants to produce more wood. Recycling of waste materials has thedouble advantage of reducing the need for raw materials, and the amount of rubbish.
Every day for a month, separate the different kinds of scrap of your home, weight them andwrite out a list. At the end, estimate the amount of materials which can be recycled,evaluate the recycling and waste management program of your community. Highlight theproblem areas of the system. Assess the problems created by not easily recyclable things,and by the polluting ones: paint cans, batteries, oils, detergents, medicines, etc. Bringout the difficulties and the questions facing particular problems in the recovery ofwastes. Ask the authorities of your city. Write a guide for families on how treat wastesin the right manner. Show this guide and the report of your research to your teacher.
Environmental Defense, Recycling
Recycling - At School
Recycling Obscure Materials
Global Recycling Network
The Internet Consumer Recycling Guide
Internet keywords: recycling.
AP Biology Practices 1 - Models Representation 2 AP Bio Labs - Part 1 AP Bio Labs - Part 2 Chi-squared Test Comparing DNA Sequences Diffusion Demo Finding Stomata.
AP Lab 4/New Lab-Investigation 5 Photosynthesis Results/
AP Biology: Sample Syllabus 3 Course Overview The course is designed around the AP Biology Curriculum Framework that focuses on the major concepts in biology.
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lab 4 AP sample 2 - Biology Junction
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Lab: Exploring the Rate of Photosynthesis - The Biology …
The AP Biology Lab Manual.
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The AP Biology exam has two large essays and six short answer questions that make up 50% of your score.
Photosynthesis and Respiration - AP biology
An ecosystem consists of the whole community of living organisms (biocenosis), the abioticcomponent of a certain environment (biotope) and their relationships.
The relationships essentially consist in a flux of substances which pass from thenon-living components to living ones and in a flux of energy which passes from thephotosynthetic organisms (plants) to the herbivorous animals, then to carnivores. Thewastes and the dead organisms are then decomposed by the micro-organisms which brake downthe substances back to simple components, in a full cycle.
1 - With a shovel in a field or in a wood, dig a square hole of about half a meter (1 1/2feet) square and about 40 cm (18") deep. Describe the non-living components of thesoil and all forms of life you find: roots, earthworms, snails, centipedes, spiders,crickets, etc. To complete the description of the ecosystem of the soil, look forinformation on the role of each of these organisms and the relationships with the otherforms of life of this environment.
2 - In similar way you have studied the soil ecosystem, you can analyze other ecosystemssuch as the ones in a forest, pond, shore, or desert.
G. and L. Durrell (2) can be useful, or there are many other books on this matter.
An Illustration of a Soil Ecosystem
Protocols for a Soil Ecosystem Approach for Characterizing Soil Biodiversity
Internet keywords: soil ecosystem.
photosynthesis lab - AP Biology Experiments
The bottle garden is a close relative of the biosphere: a tiny garden growing inside abottle, a glass sphere, or a demijohn. The main difference is that soil is the maincomponent not water. The container can be kept sealed or opened like a terrarium. Ourswill be more for just plants whereas the terrarium may have animals. These gardens in abottle, can be cured and perfected as a system, they are also very decorative, in fact youcan treat them as a bonsai with not only a single tree, but whole landscapes. A carefullychosen stone becomes a rock, a small plot of moss represents a great prairie. A contorted,little plant is now a hundred year old tree. Maybe a marsh wetlands with peat moss,mushrooms and ferns is more to your liking. Maybe appropriate succulent plants with sandand rocks for a vast desert landscape. The choice is yours. There is no rigid rule aboutbeing either an open or a closed garden. It maybe useful to keep the lid on to retainwater. Or eventually, the plants grow up and need to hang down the outside.
If the container is always sealed, the challenge becomes quite demanding. In fact, it thenis necessary to obtain an equilibrium between plants and animals in order to keep aneffective cycle of substances and energy, but if this is difficult in a predominantlywater environment, it is even more difficult in a just moist environment. So, the gardenhas to contain a moist soil, plants, little animals like terrestrial isopods (i.e.: sowbug, pill bug), earthworms, etc. Plants have to be resistant to high moisture and have asmall size and limited growth. To avoid roots rotten, you can also try to refer tohydroponics and substitute the ground with small sized expanded clay or with gravel. Inthis case you will have more difficulties in hosting animal species, so it will have to beleft open. It is important you place your garden in a cool and well illuminated place, butaway from direct sunlight. Open or closed, a bottle garden is a fascinating thing, and theidea itself of a little and self-sufficient world is fascinating as well. There are peopleso fond of bottle gardens they work at them a long time, taking care of them using longand thin tools and to observe these environments till they imagine to be one of theirinhabitants.
Then choose among these main options:
1 - Opened bottle garden, containing moist ground, plants and possible little animals. Itis suited for people who love taking care of gardens and who have a flair for
the architecture of little wide spaces.
2 - Opened bottle garden, prepared in hydroponics and containing plants. It is suited forthose who tend to forget to water their plants.
3 - Sealed bottle garden, holding moist soil, plants, and some little animals. Thisexercise is suitable for people who are keen on biology and scientific research. They willhave to find appropriate plants and animals suitable for a sealed ecosystem and will haveto achieve the necessary conditions for a long survival. This research, bibliographic inpart and experimental, will keep students happily busy for long time.
The educational value of these little ecosystems is evident. They can be carried out evenin a school, where the teacher will be allowed to illustrate their characteristics topupils and encourage interesting discussions. In the web sites below, you will findimportant practical information in building your bottle gardens.
Terrariums : Miniature Worlds in a Bottle!
BBC online, how to gardening, bottle garden
Un jardin en bouteille
Le terrarium : Un monde miniature dans une bouteille!
Internet keywords: garden bottle jar, jardin bouteille bonbonne.
Ap Biology Floating Leaf Disk Photosynthesis Lab …
Drosophila, best known as vinegar fly or fruit fly, is the little fly you see flyingaround vinegar and on fruit during the fall. Why raise vinegar flies? To observe theirdevelopment, to observe the chromosomes of their salivary glands during division, toperform experiments on genetics, finally as food for amphibians that have just completedtheir metamorphosis. In this case it is necessary to breed a species that can't fly. Youcan obtain individuals with vestigial wings (wings which are not fully developed)at a university Biology or natural sciences department.
Culture medium recipe for drosophila: water 83 ml, agar-agar 0.8 g, sugar 5 g, brewer'syeast 10 g, alcohol 1.3 ml, nipagin
0.25 g. Nipagin M is used as a preservative in foods and cosmetics, like agar-agar, youcan buy it at the stores that sell science items for laboratories. Mix the yeast and thesugar, add agar-agar and water and simmer for 3 minutes. Turn off the heat. Dissolve thenipagin in alcohol and add to the rest when it has stopped smoking. Mix and let it set.
You can find other recipes at the following websites:
Aquick and simple introduction to Drosophila melanogaster
Fruit Flies - Drosophila melanogaster
Drosophila Culture (how to culture flightless fruit flies)
Observing the Development of Drosophila in Apple Juice Agar
Drosophila Genetics Lab I
A bibliography for an insect field biology course
La drosophile (in French)
Internet keywords: drosophila culture -cells, wingless fruit flies vinegar fly.
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