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OMG OMG IM SO STRESSED!! I DONT KNOW WHAT TO REVISE! I CAN'T REVISE ANY OTHER SUB CAUSE I MIGHT MIX UP. PLUS, I SOLVED ALL THE PP
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my problem is how to write the reference in the biolography:S?just read the article slowly underlining the useful and important points.. when you reach the suggestions, ex: how to improve the article, think outside the box. ex: you may say, by adding flow diagrams or pie charts to support the data..etc if you need more advice,ask. i'm here to help
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my problem is how to write the reference in the biolography:S?
can we discuss about reliability and validity? i guess its not very clear to me...then just RELAXXXXX..IF YOU DID ALL PP. AND CAN EASILY IDENTIFY THE VARIABLES AND LIST HOW TO CONTROL THEM and have a clear idea about each practical of the nine practicals(many suspect that MITOSIS experiment will be the one in this exam) but dont rely on that,make sure you know every step done and why was it done..AND UR CLEAR ABOUT RANGE BAR(variability), ERROR BAR, SDs, mode ,median, mean, outliers, correlation,causation, reliability, validity,accuracy systematic errors and random errors, ethical,social environmental and economical issues, bibliography (reference) . YOU JUST HAVE TO RELAXXXXXXXXX..and dont wrry no hard work goes in vain! GOOD LUCK
it kinda does. You have to know how to arrange a reference or bibliography :
Format Examples
Books
Format:
Author's last name, first initial. (Publication date). Book title. Additional information. City of publication: Publishing company.
Examples:
Allen, T. (1974). Vanishing wildlife of North America. Washington, D.C.: National Geographic Society.
Boorstin, D. (1992). The creators: A history of the heroes of the imagination. New York: Random House.
Nicol, A. M., & Pexman, P. M. (1999). Presenting your findings: A practical guide for creating tables. Washington, DC: American Psychological Association.
Searles, B., & Last, M. (1979). A reader's guide to science fiction. New York: Facts on File, Inc.
Toomer, J. (1988). Cane. Ed. Darwin T. Turner. New York: Norton.
Encyclopedia & Dictionary
Format:
Author's last name, first initial. (Date). Title of Article. Title of Encyclopedia (Volume, pages). City of publication: Publishing company.
Examples:
Bergmann, P. G. (1993). Relativity. In The new encyclopedia britannica (Vol. 26, pp. 501-508). Chicago: Encyclopedia Britannica.
Merriam-Webster's collegiate dictionary (10th ed.). (1993). Springfield, MA: Merriam-Webster.
Pettingill, O. S., Jr. (1980). Falcon and Falconry. World book encyclopedia. (pp. 150-155). Chicago: World Book.
Tobias, R. (1991). Thurber, James. Encyclopedia americana. (p. 600). New York: Scholastic Library Publishing.
Magazine & Newspaper Articles
Format:
Author's last name, first initial. (Publication date). Article title. Periodical title, volume number(issue number if available), inclusive pages.
Note: Do not enclose the title in quotation marks. Put a period after the title. If a periodical includes a volume number, italicize it and then give the page range (in regular type) without "pp." If the periodical does not use volume numbers, as in newspapers, use p. or pp. for page numbers.
Note: Unlike other periodicals, p. or pp. precedes page numbers for a newspaper reference in APA style.
Examples:
Harlow, H. F. (1983). Fundamentals for preparing psychology journal articles. Journal of Comparative and Physiological Psychology, 55, 893-896.
Henry, W. A., III. (1990, April 9). Making the grade in today's schools. Time, 135, 28-31.
Kalette, D. (1986, July 21). California town counts town to big quake. USA Today, 9, p. A1.
Kanfer, S. (1986, July 21). Heard any good books lately? Time, 113, 71-72.
Trillin, C. (1993, February 15). Culture shopping. New Yorker, pp. 48-51.
Website or Webpage
Format:
Online periodical:
Author's name. (Date of publication). Title of article. Title of Periodical, volume number, Retrieved month day, year, from full URL
Online document:
Author's name. (Date of publication). Title of work. Retrieved month day, year, from full URL
Note: When citing Internet sources, refer to the specific website document. If a document is undated, use "n.d." (for no date) immediately after the document title. Break a lengthy URL that goes to another line after a slash or before a period. Continually check your references to online documents. There is no period following a URL.
Note: If you cannot find some of this information, cite what is available.
Examples:
Devitt, T. (2001, August 2). Lightning injures four at music festival. The Why? Files. Retrieved January 23, 2002, from http://whyfiles.org/137lightning/index.html
Dove, R. (1998). Lady freedom among us. The Electronic Text Center. Retrieved June 19, 1998, from Alderman Library, University of Virginia website: http://etext.lib.virginia.edu/subjects/afam.html
Note: If a document is contained within a large and complex website (such as that for a university or a government agency), identify the host organization and the relevant program or department before giving the URL for the document itself. Precede the URL with a colon.
Fredrickson, B. L. (2000, March 7). Cultivating positive emotions to optimize health and well-being. Prevention & Treatment, 3, Article 0001a. Retrieved November 20, 2000, from http://journals.apa.org/prevention/volume3/pre0030001a.html
GVU's 8th WWW user survey. (n.d.). Retrieved August 8, 2000, from http://www.cc.gatech.edu/gvu/usersurveys/survey1997-10/
Health Canada. (2002, February). The safety of genetically modified food crops. Retrieved March 22, 2005, from http://www.hc-sc.gc.ca/english/protection/biologics_genetics/gen_mod_foods/genmodebk.html
Hilts, P. J. (1999, February 16). In forecasting their emotions, most people flunk out. New York Times. Retrieved November 21, 2000, from http://www.nytimes.com
Hope that helped
OKAY SURE.. SEEcan we discuss about reliability and validity? i guess its not very clear to me...
can you tell me explain me the social, economical and environmental implications?can we discuss about reliability and validity? i guess its not very clear to me...
it depends on the bibliography given to you..ie if only the website nme is mentioned you can improve it by commenting that a precise URL of the website should be given.. the date and the name of the authour must also be mentioned...so basically once you know the format of writing a bibliography see what is missing in the reference in the report..hope this helpshow can we improve biobliography ?
thnx in advance.
1-cut the tip from a growing root. it should be about 5mm long.can some one go over observing mitosis step by step and why each step is done
thanx in advance
thanx a lot this very useful but why we add HCl in step 21-cut the tip from a growing root. it should be about 5mm long.
2-place the root tip in a watch glass and a few drops of hydrochloric acid.
3-add a few drops of stain,eg. orcein acetin.This will make the chromosomes darker and easier to see.
4-warm the watch glass,BUT DON'T ALLOW THE LIQUID TO BOIL, by running it through a bunsen burner flame or placing it on a hot plate.
5-place the root tip on a microscope slide and use a mounted needle to break it open and spread the cells out evenly.
6-add a few more drops of stain,eg. orcein acetin, and place a cover slip over it.
7-squash the cover slip down gently.
9-warm the slide for a few seconds. This will intensify the stain.
These are the steps Study them really well as it is expected to get mitosis in this session! Good Luck
Umm i really don't know i asked myself the same question....maybe to kill any bacteria but that doesn't make sense :S if u knew the answer plz tell me at any timethanx a lot this very useful but why we add HCl in step 2
good luck
i phoned the british counil but they said we dont have any password to provide you with. Could you plz take a screen shot of the documents and just paste it here. PLEASEhttps://www.edexcel.com/resultsplus/Pages/default.aspx
you need a pin to register. You can get one from your centre which I believe is the British council. Phone them.
hydrochloric acid is used to break down the pectins that holds the cells togetherthanx a lot this very useful but why we add HCl in step 2
good luck
do u have explanations like this for all the steps and other experiments alsohydrochloric acid is used to break down the pectins that holds the cells together
HCL is used to soften the tissues of the root tip,it does that by partially breaking the cell and its componentsUmm i really don't know i asked myself the same question....maybe to kill any bacteria but that doesn't make sense :S if u knew the answer plz tell me at any time
Thnxx alootHCL is used to soften the tissues of the root tip,it does that by partially breaking the cell and its components
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