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Structural Factors in Evolution
Laboratory activities encourage evolutionary biology scholars to consider homologous structures as evidence of common ancestry. They learn how to formulate phylogenic trees and that environment influences to genetic variation. Activities...
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Tutti Frutti
Get some competition going in your life science class. Give lab groups a variety of plant parts, all of them fruits, except one. Their mission is to make observations, compare and contrast, in order to be the first to identify the...
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The Effect of Natural Selection on Genes, Traits and Individuals
Rotating through five stations, evolutionary biologists explore the question of how changes in DNA facilitate the changes in a population over time. High-quality, colorful cards of animals, skeletons, skulls, and DNA sequences can all be...
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Homologous Shoes
Students examine the concept of homology by observing their shoes and those of their classmates. They summarize the observations of everyone's shoes relating it to chromosomes in cells. They share their observations with the class.
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Natural Selection
Students estimate how many different species of organisms inhabit the Earth. In groups, they match the pictures of embryos at the different stages of development. They compare and contrast animals from the sky, land, and water and...
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History Theory of Evolution
Learners identify fossils. They identify evidence of change over time when given pictures of fossils to determine the proper sequencing. In addition, they determine evolutionary relationships by comparing embryonic structures.
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Introduction To Floral Morphology
Pupils create a model of the four basic whorls of flowers using a water bottle, construction paper and Q-tips. They then examine fresh flower specimens to see how the basic structure can vary in different species of flowering plants.
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Natural Selection
Eighth graders define natural selection and adaptation. They simulate natural selection within a species and relate the elements of natural selection to the simulation. They analyze the results of natural selection in terms of...
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The Cytochrome-C Lab
Young scholars examine a method biologists use to try to determine relationships. They examine how amino acid sequences have been determined for a number of proteins, and how scientists can make inferences about DNA based on the amino...
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Proteomics
Students analyze data taken from proteomic experiments. In this biology lesson, students explain the importance of bioinformatics tools in the study of proteins. They evaluate scientific results using math and computer software.
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Cell Division and Mitosis
Students identify each phase of mitosis and the main characteristics of each. Students prepare a microscope slide with onion root tip. Students observe the cell division occurring in the cells and label the mitosis phases observed.