This correlation lists the recommended Gizmos for this state's curriculum standards. Click any Gizmo title below for more information.
BIO2.LS4: : Biological Change: Unity and Diversity
BIO2.LS4.1: : Use models of viruses, prokaryotes, and eukaryotes to ask questions about characteristics of living things and analyze theories regarding the origin of life on Earth. Construct an argument from evidence supporting the idea that eukaryotes could not exist on the planet if not for prokaryotes.
Cell Types
Explore a wide variety of cells, from bacteria to human neurons, using a compound light microscope. Select a sample to study, then focus on the sample using the coarse and fine focus controls of the microscope. Compare the structures found in different cells, then perform tests to see if the sample is alive.
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BIO2.LS4.3: : Use molecular data to construct cladograms depicting phylogenetic relationships between major groups of organisms.
Cladograms
Based on the similarities and differences between different organisms, create branching diagrams called cladograms to show how they are related. Use both morphological data (physical traits) and molecular data to create the simplest and most likely cladograms. Five different sets of organisms are available.
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BIO2.LS4.13: : Interpret data supporting current plant classification schemes. Use a dichotomous key to identify plants based on variations in characteristics.
Dichotomous Keys
Use dichotomous keys to identify and classify five types of organisms: California albatrosses, Canadian Rockies buttercups, Texas venomous snakes, Virginia evergreens, and Florida cartilagenous fishes. After you have classified every organism, try making your own dichotomous key!
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BIO2.LS4.2: : Using information based on the geologic time scale and history of life on Earth, look for patterns in changes in organisms over time and explain how these patterns support the theory of evolution.
Embryo Development
Explore how a fertilized cell develops into an embryo, a fetus, and eventually an adult organism. Compare embryo development in different vertebrate species and try to guess which embryo belongs to each species. Use dyes to trace the differentiation of cells during early embryo development, from the zygote to the neurula.
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BIO2.LS4.21: : Construct an argument for the importance of embryological development in understanding relatedness (evolutionary relationships). As part of the argument, compare models of embryological development of protostomes and deuterostomes.
Embryo Development
Explore how a fertilized cell develops into an embryo, a fetus, and eventually an adult organism. Compare embryo development in different vertebrate species and try to guess which embryo belongs to each species. Use dyes to trace the differentiation of cells during early embryo development, from the zygote to the neurula.
5 Minute Preview
BIO2.LS4.23: : Design and carry out an investigation examining how major body systems interact to maintain homeostasis of nutrient, energy, water, waste, and/or temperature balance.
Human Homeostasis
Adjust the levels of clothing, perspiration, and exercise to maintain a stable internal temperature as the external temperature changes. Water and blood sugar levels need to be replenished regularly, and fatigue occurs with heavy exercise. Severe hypothermia, heat stroke, or dehydration can result if internal stability is not maintained.
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In the role of a physician assistant, students help a young man, named Anthony, who has Type II diabetes and high blood pressure. Students must make a diagnosis and then must apply the principles of filtration and homeostasis to help Anthony.
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BIO2.LS4.24: : Obtain and communicate information on how the nervous and endocrine systems in a model vertebrate organism coordinate body functions such as: growth and development; stimuli response and information transmission; and, the maintenance of homeostasis.
Homeostasis - High School
In the role of a physician assistant, students help a young man, named Anthony, who has Type II diabetes and high blood pressure. Students must make a diagnosis and then must apply the principles of filtration and homeostasis to help Anthony.
Video Preview
BIO2.LS4.28: : Evaluate scientific data collected from multiple sources to trace animal evolution.
Cladograms
Based on the similarities and differences between different organisms, create branching diagrams called cladograms to show how they are related. Use both morphological data (physical traits) and molecular data to create the simplest and most likely cladograms. Five different sets of organisms are available.
5 Minute Preview
Explore how a fertilized cell develops into an embryo, a fetus, and eventually an adult organism. Compare embryo development in different vertebrate species and try to guess which embryo belongs to each species. Use dyes to trace the differentiation of cells during early embryo development, from the zygote to the neurula.
5 Minute Preview
Observe evolution in a fictional population of bugs. Set the background to any color, and see natural selection taking place. Inheritance of color occurs according to Mendel's laws and probability. Mutations occur at random, and probability of capture by predators is determined by the insect's camouflage.
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You are a bird hunting moths (both dark and light) that live on trees. As you capture the moths most easily visible against the tree surface, the moth populations change, illustrating the effects of natural selection.
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Go through the process of synthesizing proteins through RNA transcription and translation. Learn about the many steps involved in protein synthesis including: unzipping of DNA, formation of mRNA, attaching of mRNA to the ribosome, and linking of amino acids to form a protein.
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Study the thickness of birds' beaks over a five-year period as you control the yearly rainfall on an isolated island. As the environmental conditions change, the species must adapt (a real-world consequence) to avoid extinction.
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Study the thickness of birds' beaks over a five year period as you control the yearly rainfall on an isolated island. As the environmental conditions change, the species must adapt (a real-world consequence) to avoid extinction.
5 Minute Preview
Students assume the role of a scientist trying to solve a real world problem. They use scientific practices to collect and analyze data, and form and test a hypothesis as they solve the problems.
