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Showing 16 to 30 of 119 results Save | Export
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Cline, Erica; Gogarten, Jennifer – American Biology Teacher, 2012
We describe a laboratory exercise developed for the cell and molecular biology quarter of a year-long majors' undergraduate introductory biology sequence. In an analysis of salmon samples collected by students in their local stores and restaurants, DNA sequencing and phylogenetic analysis were used to detect market substitution of Atlantic salmon…
Descriptors: Cytology, Molecular Biology, Science Instruction, College Science
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Yerky, Mike Darwin; Wilczynski, Carolyn J. – American Biology Teacher, 2014
In this activity, students examine nine hominin skulls for specialized features and take measurements that will enable them to determine the relatedness of these species. They will ultimately place each specimen on a basic phylogenetic tree that also reveals the geological time frame in which each species lived. On the basis of their data, and…
Descriptors: Evolution, Science Activities, Scientific Methodology, Class Activities
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Ondrej, Vladan; Dvorak, Petr – Journal of Biological Education, 2012
Bioinformatics, biological databases, and the worldwide use of computers have accelerated biological research in many fields, such as evolutionary biology. Here, we describe a primer of nucleotide sequence management and the construction of a phylogenetic tree with two examples; the two selected are from completely different groups of organisms:…
Descriptors: Biology, Research, Information Science, Databases
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Franklin, Wilfred A. – American Biology Teacher, 2010
In a flexible multisession laboratory, students investigate concepts of phylogenetic analysis at both the molecular and the morphological level. Students finish by conducting their own analysis on a collection of skeletons representing the major phyla of vertebrates, a collection of primate skulls, or a collection of hominid skulls.
Descriptors: Evolution, Science Activities, Science Instruction, Biology
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Baum, David A.; Offner, Susan – American Biology Teacher, 2008
Phylogenetic trees, which are depictions of the inferred evolutionary relationships among a set of species, now permeate almost all branches of biology and are appearing in increasing numbers in biology textbooks. While few state standards explicitly require knowledge of phylogenetics, most require some knowledge of evolutionary biology, and many…
Descriptors: Evolution, Textbooks, State Standards, Biology
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Seoh, Kah Huat Robin; Subramaniam, R.; Hoh, Yin Kiong – Journal of Research in Science Teaching, 2016
Tree thinking, the understanding of the evolutionary relationships between organisms depicted in different types of tree diagrams, is an integral part of understanding evolution. Novice learners often read tree diagrams differently from specialists, resulting in diverse interpretations of the relationships depicted. The aim of this study is to…
Descriptors: Foreign Countries, Evolution, Grade 12, Secondary School Students
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Parker, Monica – Journal of College Science Teaching, 2010
In this inquiry-based activity, students catalog external and internal characteristics of four different classes of animals during dissection exercises. On the basis of their accumulated data, students compare and contrast the animals, devise a phylogenetic tree, and provide reasonable characteristics for extinct transitional organisms. (Contains…
Descriptors: Science Process Skills, Inquiry, Animals, Laboratory Procedures
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LaFreniere, Peter; MacDonald, Kevin – Developmental Review, 2013
Recent advances in molecular genetics and epigenetics are reviewed that have major implications for the bio-behavioral sciences and for understanding how organisms adapt to their environments at both phylogenetic and ontogenic levels. From a post-genomics perspective, the environment is as crucial as the DNA sequence for constructing the…
Descriptors: Genetics, Behavioral Sciences, Behavior Development, Adjustment (to Environment)
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de Carvalho, Rafael Vera Cruz; Seidl-de-Moura, Maria Lucia; Martins, Gabriela Dal Forno; Vieira, Mauro Luís – Early Child Development and Care, 2014
This paper aims to describe, compare and discuss the theoretical models proposed by Patricia Greenfield, Çigdem Kagitçibasi and Heidi Keller. Their models have the common goal of understanding the developmental trajectories of self based on dimensions of autonomy and relatedness that are structured according to specific cultural and environmental…
Descriptors: Individual Development, Personal Autonomy, Context Effect, Educational Theories
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van der Goot, Marloes H.; Tomasello, Michael; Liszkowski, Ulf – Child Development, 2014
This study investigated how great apes and human infants use imperative pointing to request objects. In a series of three experiments (infants, N = 44; apes, N = 12), subjects were given the opportunity to either point to a desired object from a distance or else to approach closer and request it proximally. The apes always approached close to the…
Descriptors: Infants, Animals, Nonverbal Communication, Proximity
Zhang, Zhewei – ProQuest LLC, 2016
Digital products are rapidly shaping our world into a ubiquitous computing world. Because of its unique characteristics, digital artifacts are generative and highly evolving through the recombination of existing elements as well as by the invention of new elements. In this thesis, I first propose an evolutionary view to examine how digital…
Descriptors: Classification, Computer Software, Web Sites, Design
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Horn, Michael S.; Phillips, Brenda C.; Evans, Evelyn Margaret; Block, Florian; Diamond, Judy; Shen, Chia – Journal of Research in Science Teaching, 2016
In this study, we investigate museum visitor learning and engagement at an interactive visualization of an evolutionary tree of life consisting of over 70,000 species. The study was conducted at two natural history museums where visitors collaboratively explored the tree of life using direct touch gestures on a multi-touch tabletop display. In the…
Descriptors: Informal Education, Science Instruction, Museums, Evolution
Novick, Laura R.; Catley, Kefyn M. – CBE - Life Sciences Education, 2016
The ability to interpret and reason from Tree of Life (ToL) diagrams has become a vital component of science literacy in the 21st century. This article reports on the effectiveness of a research-based curriculum, including an instructional booklet, laboratory, and lectures, to teach the fundamentals of such tree thinking in an introductory biology…
Descriptors: Science Instruction, Scientific Literacy, College Science, Biology
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Wilkins, John S. – Science & Education, 2013
The vision of natural kinds that is most common in the modern philosophy of biology, particularly with respect to the question whether species and other taxa are natural kinds, is based on a revision of the notion by Mill in "A System of Logic." However, there was another conception that Whewell had previously captured well, which taxonomists have…
Descriptors: Physical Sciences, Scientific Methodology, Biology, Science Education
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Bremner, Andrew J.; Caparos, Serge; Davidoff, Jules; de Fockert, Jan; Linnell, Karina J.; Spence, Charles – Cognition, 2013
Western participants consistently match certain shapes with particular speech sounds, tastes, and flavours. Here we demonstrate that the "Bouba-Kiki effect", a well-known shape-sound symbolism effect commonly observed in Western participants, is also observable in the Himba of Northern Namibia, a remote population with little exposure to…
Descriptors: Foreign Countries, Acoustics, Perception, Cultural Differences
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