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Journal Articles
The American Biology Teacher. 2019; 818582–584 doi: https://doi.org/10.1525/abt.2019.81.8.582
Published: 01 October 2019
...Robert E. Zdor This lab gives students hands-on experience with visualizing the root architecture of plants exposed to varying concentrations of the vital nutrient phosphorus. By maintaining Brassica sp. seedlings in the presence of different quantities of phosphate, students can quantify changes...
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Published: 01 October 2019
Figure 2. Effect of phosphate levels on lateral root numbers of Brassica sp. Each bar represents the average of 75–89 plants from four years of student data collection. Figure 2. Effect of phosphate levels on lateral root numbers of Brassica sp. Each bar represents the average of 75–89 plants
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Published: 01 April 2019
Figure 7. Ratios of root mass to total plant biomass from data collected by students during plant growth experiment. Bars represent means. Error bars represent one standard deviation from the mean. Sample sizes shown above bars are number of plant replicates in each treatment. Figure 7. Ratios
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Published: 01 September 2015
Figure 1. Numbers of times that the word-root argu and the word data occur in 11 articles from the Discovery Institute and 28 articles from the Smithsonian Tropical Research Institute (STRI). Scientists at STRI made heavy use of data but rarely used or cited argumentation in their articles
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Published: 01 May 2015
Figure 2. The physical print of the student’s designed root tip. (A–C) Different angles of the raw print of the student’s file. (D–E) Final print with additional painting done by the student. Figure 2. The physical print of the student’s designed root tip. (A–C) Different angles of the raw
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Published: 01 September 2014
Figure 1. Online onion-root-tip cell-cycle data-collection sample. Figure 1. Online onion-root-tip cell-cycle data-collection sample.
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Published: 01 September 2014
Figure 2. Student product: a paper-plate model of the onion root tip’s time spent in phases of the cell cycle. Figure 2. Student product: a paper-plate model of the onion root tip’s time spent in phases of the cell cycle.
Journal Articles
The American Biology Teacher. 1995; 577432–435 doi: https://doi.org/10.2307/4450033
Published: 01 October 1995
... microbiology 1992 Johnson, P.E. (1992, June-July). Root beer: Making tradition at home. Mother Earth News, 132, 18-19. Johnson June 18 132 Mother Earth News 1992 Lehninger, A.L. (1975). Biochemistry, 2nd ed. New York, NY: Worth Pub- lishers, Inc. Lehninger 2 Biochemistry 1975...
Journal Articles
The American Biology Teacher. 1994; 56144–46 doi: https://doi.org/10.2307/4449741
Published: 01 January 1994
.... 1: Techniques for propagation and breeding 1983 Gunckel, J.E., Sharp, W.R., Williams, B.W., West, W.C. & Drinkwater, W.O. (1972). Root and shoot initia- tion in sweet potato explants as re- lated to polarity and nutrient media variations. Botanical Gazette, 133(3), 254-262. 10.2307/2473913...
Journal Articles
The American Biology Teacher. 2016; 78293–98 doi: https://doi.org/10.1525/abt.2016.78.2.93
Published: 01 February 2016
... spend time working specifically with the Tree of Life website ( http://tolweb.org ). At the beginning of the course, I used the website on the front screen in the classroom to click through the tree of life from the “root” to find chimpanzees. This showed students that there is an ancestry to all...
Images
Published: 01 September 2012
Figure 3. Notice the limestone rocks on the far right and the root coming from the middle of the back wall. The foam is surprisingly strong and can be used to hold natural props. Figure 3. Notice the limestone rocks on the far right and the root coming from the middle of the back wall. The
Journal Articles
The American Biology Teacher. 1982; 442127 doi: https://doi.org/10.2307/4447424
Published: 01 February 1982
...- tional Series No. 46. Solomon, Md.: Maryland Department of Research and Education. PENNAK, R.W. 1978. Fresh-water in- vertebrates of the United States. New York: John Wiley & Sons. Erratum The following was inadvertently omitted from "Making the Most of Onion Root Tip Mitosis" (ABT 43 (7): 386): The...
Journal Articles
The American Biology Teacher. 1981; 437386–388 doi: https://doi.org/10.2307/4447312
Published: 01 October 1981
... the periodicity of division in the root tip of Allium cepa. Amer. J. Bot. 45:365-372. 10.2307/2439635 365 MAZIA, D. 1961. Mitosis and the phy- siology of cell division. In Brachet, J., and Mirsky. A.E. (eds.) The cell. Vol. 3. New York: Academic Press. Mazia Mitosis and the physiology of...
Journal Articles
The American Biology Teacher. 1975; 378501–503 doi: https://doi.org/10.2307/4445373
Published: 01 November 1975
... kinetic parameters in plant root meri- stems. In Methods in Cell Physiology, ed. by D. Prescott. Academic Press, New York. Vol. 3, p. 95-117. Van't Hof Experimental procedures for measuring cell population kinetic parameters in plant root meristems 95 3 Methods in Cell Physiology 1968 VOSA...
Journal Articles
The American Biology Teacher. 1970; 325291–293 doi: https://doi.org/10.2307/4443054
Published: 01 May 1970
...John J. Holleman Copyright 1970 The National Association of Biology Teachers Demonstrating Root Growth and Geotropism By JOHN J. HOLLEMAN O ne method used to demonstrate root growth and geotropic response is to arrange some seeds in a circle on a moist material in a holder, which is placed in...
Journal Articles
The American Biology Teacher. 1963; 25294–95 doi: https://doi.org/10.2307/4440220
Published: 01 February 1963
...John G. Torrey References 1 Clowes, F. A. L., 1956. Localization of nucleic acid synthesis in root meristems. J. Exp. Bot. 7: 307-312 Clowes 307 7 J. Exp. Bot. 1956 2 Darlington, C. D. and L. F. La Cour, 1960. The Handling of Chromosomes, 3rd ed. George Allen and Unwin, Ltd...
Journal Articles
The American Biology Teacher. 1961; 238513–515 doi: https://doi.org/10.2307/4439736
Published: 01 December 1961
.... Darlington 3 The Handling of Chromosomes 1960 Root Tip Cell Squashes for the Study of Cell and Chromosome Morphology * William H. Miller, Maine West High School, Des Plaines, Illinois Root tip squashes from actively growing root tips provide fine material for the study of cell and chromosome...
Journal Articles
The American Biology Teacher. 1954; 16619 doi: https://doi.org/10.2307/4438628
Published: 01 October 1954
...Harper Follansbee Vol. 16, No. 6 SECONDARY ROOT DEMONSTRATION 19 in w,raxing and shining my three horns. They are my pride and joy as you know and I don't want them dull. I also like to play marbles with Amphicyon (the dog 8. "What is the present outlook for the world of the future? " "That is a...
Journal Articles
The American Biology Teacher. 2020; 825296–305 doi: https://doi.org/10.1525/abt.2020.82.5.296
Published: 01 May 2020
... textbook figures present meiosis concepts. We found that almost all textbook representations include the chromosomal level of DNA, but few include the other levels, even to illustrate concepts that are rooted in informational and/or molecular levels. In particular, the molecular level of DNA was absent...