Use a model to illustrate the role of cellular division (mitosis) and differentiation in producing and maintaining complex organisms. HS-LS1-4
Clarification Statement: none
Assessment Boundary: Assessment does not include specific gene control mechanisms or rote memorization of the steps of mitosis.
Developing and Using Models
Modeling in 9–12 builds on K–8 experiences and progresses to using, synthesizing, and developing models to predict and show relationships among variables between systems and their components in the natural and designed world(s).
Use a model based on evidence to illustrate the relationships between systems or between components of a system. (HS-LS1-4)
Growth and Development of Organisms
In multicellular organisms individual cells grow and then divide via a process called mitosis, thereby allowing the organism to grow. The organism begins as a single cell (fertilized egg) that divides successively to produce many cells, with each parent cell passing identical genetic material (two variants of each chromosome pair) to both daughter cells. Cellular division and differentiation produce and maintain a complex organism, composed of systems of tissues and organs that work together to meet the needs of the whole organism. (HS-LS1-4)
Systems and System Models
Models (e.g., physical, mathematical, computer models) can be used to simulate systems and interactions—including energy, matter, and information flows—within and between systems at different scales. (HS-LS1-4)
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This two-minute video provides brief background on the use of zebrafish as a model in studying animal development, before showing a time-lapse sequence of a fertilized zebrafish egg developing into a larva. The video includes some annotations t ...
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In this hands-on, minds-on activity students use model chromosomes and answer analysis and discussion questions to learn how the cell cycle produces genetically identical daughter cells. Students learn how DNA replication and mitosis ensure that each...
The goal of the Animal Cell virtual labs are to allow students to examine a cell at the microscopic level. Students conduct investigations to learn how organelles work together to sustain the cell’s functions.
The goal of the Plant Cell virtual labs are to allow students to examine a cell at the microscopic level. Students conduct investigations to learn how organelles work together to sustain the cell’s functions.
This free, four-part series includes videos, hands-on modeling activities and computer visualization tutorials that students can do in the classroom or at home.
Jim Allison: Breakthrough is an award-winning documentary that tells the moving, true story of one warm-hearted, stubborn scientist’s visionary quest to find a cure for cancer. Breakthrough highlights how courage, passion, determination, collaboratio...