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Journal Articles
The American Biology Teacher. 2018; 80153–55 doi: https://doi.org/10.1525/abt.2018.80.1.53
Published: 01 January 2018
... relationship between body size and reproductive ability in birds. This activity, which guides students in hypothesis development and testing, data collection, and statistical analysis, is applicable to students at the high school and undergraduate levels. In addition, although I focused on birds, this activity...
Images
Relationship between (log) <b>body</b> <b>size</b> and the (log) length of three differen...
Published: 01 October 2018
Figure 3. Relationship between (log) body size and the (log) length of three different traits (tibia, genitalia, and horns) in male dung beetles ( Onthophagus gazella ). Each symbol depicts one individual. Regression line indicates different slopes and thus different static allometric Figure 3. Relationship between (log) body size and the (log) length of three different traits (tibia, genitalia, and horns) in male dung beetles ( Onthophagus gazella ). Each symbol depicts one individual. Regression line indicates different slopes and thus different static allometric More
Images
Hypothetical example of negative non-linear relationship between <b>body</b> <b>size</b> ...
Published: 01 January 2018
Figure 1. Hypothetical example of negative non-linear relationship between body size and number of eggs per year reproduced by bird species. Other examples could include positive linear or non-linear relationships or no relationship at all. Figure 1. Hypothetical example of negative non-linear Figure 1. Hypothetical example of negative non-linear relationship between body size and number of eggs per year reproduced by bird species. Other examples could include positive linear or non-linear relationships or no relationship at all. Figure 1. Hypothetical example of negative non-linear More
Journal Articles
The American Biology Teacher. 2016; 785429–432 doi: https://doi.org/10.1525/abt.2016.78.5.429
Published: 01 May 2016
... principles, hands-on investigation will provide a better understanding of why size is important in endotherm thermal regulation. One easily observable aspect of this principle is that larger organisms have a lower ratio of body surface area to total body volume. This affects how efficiently they can retain...
Journal Articles
The American Biology Teacher. 2010; 727432–436 doi: https://doi.org/10.1525/abt.2010.72.7.8
Published: 01 September 2010
..., and the relationships between perching height, body size, and wing aerodynamics. Table 1. The frequency of perch events at different heights by four dragonfly species, and chi-square tests comparing these distributions against even distributions of no preference. Data from an introductory...
Images
Punnett square for the F 2  generation of the dihybrid cross showing the in...
Published: 01 January 2019
Figure 6. Punnett square for the F 2 generation of the dihybrid cross showing the independent inheritance of hypothetical genes for body size and organ size. Figure 6. Punnett square for the F2 generation of the dihybrid cross showing the independent inheritance of hypothetical genes for body Figure 6. Punnett square for the F 2 generation of the dihybrid cross showing the independent inheritance of hypothetical genes for body size and organ size. Figure 6. Punnett square for the F2 generation of the dihybrid cross showing the independent inheritance of hypothetical genes for body More
Journal Articles
The American Biology Teacher. 2020; 825323–327 doi: https://doi.org/10.1525/abt.2020.82.5.323
Published: 01 May 2020
... simple iteration, but it can be easily modified to explore how other factors would affect the progression of the disease through the population. For example, you could set shorter morbidity durations to allow for recovery, which would change active case numbers but not total population sizes and...
Journal Articles
The American Biology Teacher. 2020; 825279–288 doi: https://doi.org/10.1525/abt.2020.82.5.279
Published: 01 May 2020
... species of animal. Obviously rats and mice are too small, but it turns out that pig organs are remarkably similar in size and structure to human organs. Using the same approach, Wu inserted human stem cells into a pig blastocyst and the experiment worked. Figure 7B is a picture of the first pig/human...
Journal Articles
The American Biology Teacher. 2020; 823186 doi: https://doi.org/10.1525/abt.2020.82.3.186
Published: 01 March 2020
... information about specific traits in order to make sense of their lizard classification. A video explains how scientists x-ray the lizards and scan their toe pads. After viewing a tutorial, students use a nifty measuring app to get body and hind-limb lengths and toe-pad sizes of the lizards to notice...
Journal Articles
The American Biology Teacher. 2020; 823175–177 doi: https://doi.org/10.1525/abt.2020.82.3.175
Published: 01 March 2020
... Creative Commons Attribution-NonCommercial 2.0 Generic (CC BY-NC 2.0) license ( https://creativecommons.org/licenses/by-nc/2.0/ ). A printable game board is available as Supplemental Material with the online version of this article. It can be printed on standard letter-size paper or specially printed for a...
Journal Articles
The American Biology Teacher. 2020; 823188–191 doi: https://doi.org/10.1525/abt.2020.82.3.188
Published: 01 March 2020
... in their rice diets. There were 100 prisons, housing nearly a quarter-million prisoners – quite a sample size. Data on the relevant comparison already existed. Vorderman collected the statistics on rice diet and incidence of beriberi for each prison. Sure enough, comparing the two forms of the same...
Journal Articles
The American Biology Teacher. 2020; 823162–169 doi: https://doi.org/10.1525/abt.2020.82.3.162
Published: 01 March 2020
...Davison Sangweme; Evan Lampert; Erin McIntosh Microorganisms are diverse, minute, simple life-forms that generally cannot be seen by the naked eye and require the use of a microscope to be visualized. They have a great impact on all other life-forms. Their tiny size conceals them from us...
Journal Articles
The American Biology Teacher. 2020; 822104–112 doi: https://doi.org/10.1525/abt.2020.82.2.104
Published: 01 February 2020
... traits are favorable at that time and place. You cannot see evolution happening. We can see examples of species with short generation times changing (evolving) over time (e.g., pesticide resistance in insects, antibiotic resistance in bacteria, shift in body size in fish). Individual organisms can...
Images
The student worksheets include  (A)  a description of the phenomenon,  (B) ...
Published: 01 February 2018
Figure 4. The student worksheets include (A) a description of the phenomenon, (B) a simulation manual, (C) a table (for recording body sizes and allele frequencies), and (D) a diagram (for recording body size) for documenting the impact of artificial selection on phenotypes and genotypes Figure 4. The student worksheets include (A) a description of the phenomenon, (B) a simulation manual, (C) a table (for recording body sizes and allele frequencies), and (D) a diagram (for recording body size) for documenting the impact of artificial selection on phenotypes and genotypes More
Journal Articles
The American Biology Teacher. 2020; 822120–122 doi: https://doi.org/10.1525/abt.2020.82.2.120
Published: 01 February 2020
... simply name bones (although cheering each other on during the Bones Race is fun). True understanding of the bony structure comes with appreciation of how comparative shape, size, and placement of the same bones in different species reflect evolutionary responses to different challenges for survival. Life...
Journal Articles
The American Biology Teacher. 2020; 82272–79 doi: https://doi.org/10.1525/abt.2020.82.2.72
Published: 01 February 2020
... fossilization, because it increases crystal size, which increases the stability of bone mineral ( Berna et al., 2004 ; Kocsis et al., 2010 ; Kendall et al., 2018 ). Fossil bone of Mesozoic age always has a high fraction of francolite and fluoroapatite ( Wings, 2004 ; Piga et al., 2011 ). The high stability...
Journal Articles
The American Biology Teacher. 2020; 82118–27 doi: https://doi.org/10.1525/abt.2020.82.1.18
Published: 01 January 2020
... previous training. ( B ) A word cloud showing the self-reported ways students described prior leadership training experiences (responses from the two years pooled). Larger font size indicates a larger proportion of students providing that response. Figure 1. Students' self-reported (2015 and 2016) prior...
Includes: Supplementary data
Images
New simulation, described in this paper, focusing on both phenotypic change...
Published: 01 February 2018
Figure 2. New simulation, described in this paper, focusing on both phenotypic change (shrinking body size of Atlantic cod) and changes in allele frequencies due to size-selective harvesting ( www.evolution-of-life.com and Jördens et al., 2016 ). Figure 2. New simulation, described in this Figure 2. New simulation, described in this paper, focusing on both phenotypic change (shrinking body size of Atlantic cod) and changes in allele frequencies due to size-selective harvesting ( www.evolution-of-life.com and Jördens et al., 2016 ). Figure 2. New simulation, described in this More
Images
Exemplary results from two groups of students are presented in the tables  ...
Published: 01 February 2018
Figure 5. Exemplary results from two groups of students are presented in the tables (A) and in the diagrams (B) . Lines represent mean body size per generation over time. Figure 5. Exemplary results from two groups of students are presented in the tables (A) and in the diagrams (B). Lines Figure 5. Exemplary results from two groups of students are presented in the tables (A) and in the diagrams (B) . Lines represent mean body size per generation over time. Figure 5. Exemplary results from two groups of students are presented in the tables (A) and in the diagrams (B). Lines More
Journal Articles
The American Biology Teacher. 2019; 819610–617 doi: https://doi.org/10.1525/abt.2019.81.9.610
Published: 01 December 2019
... one maternal and one paternal chromosome. Each pair of homologous chromosomes carries genes for the same traits. Figure 1. Human karyotypes. The 46 human chromosomes can be arranged into 23 pairs. In order of decreasing size, the pairs of chromosomes are numbered 1–22. The X and Y sex...