Students will understand what a neuron is and what it does (focus on cellular communication), review the anatomy of a neuron by constructing a model neuron out of pipe cleaners, and understand the different functions of the parts of a neuron.

In this lab, students will learn about the life cycle of corals, including how they grow and reproduce. Students will also consider the chemistry of seawater and demonstrate how calcium carbonate precipitates to form skeletal reef material.

This resource is a lab in which students are given a hypothetical DNA sequence for part of an enzyme. Using the universal genetic code, they will then determine the amino acid sequence coded for by the DNA. Differently shaped lego blocks will represent different amino acids. Students will construct the enzyme using legos.

This hands-on activity is designed for students to demonstrate the concepts of bonding amino acids to create proteins, and to model protein synthesis. This activity cab be used as an assessment of the students' understanding of peptide and disulfide bonds formed during protein synthesis, and the structure of an amino acid (R-group plus the common structure that all amino acids share). Students will demonstrate the process of dehydration synthesis by combining amino acids. They will synthesize one molecule of the protein ADH (antidiuretic hormone) by reading the mRNA sequence, cutting out the -OH on the carboxyl group on amino acid one, and the -H on the amino group of amino acid two. These two pieces (-OH and -H) will combine to form a water molecule. The students will connect the two amino acids by taping a peptide bond label between the carbon of the carboxyl and the nitrogen of the amino group on amino acid. This process is continued until the stop codon on the mRNA is read. If the synthesis is done correctly, the student will produce eight peptide bonds creating one chain, and eight molecules of water. If this activity is used for biology, the tRNA, and rRNA molecules can be added to the process.

In this lab, students will learn about the life cycle of corals, including how they grow and reproduce. Students will also consider the chemistry of seawater and demonstrate how calcium carbonate precipitates to form skeletal reef material.

In this lab, students will learn about the life cycle of corals, including how they grow and reproduce. Students will also consider the chemistry of seawater and demonstrate how calcium carbonate precipitates to form skeletal reef material.

Students use the example of the Burrowing Owl to illustrate how human activities can control the fate of a species. In addition to exploring the negative impact community development has had on the owl's habitat, students will read about proactive steps people have taken to reverse this destruction.

Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Foundation's high school Biology FlexBook covers cell biology, genetics, evolution, ecology, botany, zoology, and physiology. This digital textbook was reviewed for its alignment with California content standards.

Students use DNA profiling, or fingerprinting, to solve two cases of elephant poaching in this interactive. In the process they will learn about genetic markers, PCR, gel electrophoresis, allele frequencies, and population genetics.

In this lesson students become unwitting subjects in a demonstration of natural selection. Students select candies from a bowl and have an opportunity to think about what traits brought about the “survival” of some candies.

The Carbon Cycle and the Nitrogen CycleGiving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org

In this Spreadsheets Across the Curriculum module, students will build a spreadsheet to calculate the net carbon sequestration in a set of trees using an allometric approach based upon parameters measured on the individual trees. Students determine the species of trees in the set, measure diameter at breast height (dbh), and, from the allometric relationships determined by forestry researchers, use the spreadsheet to calculate carbon content of the tree. Students can then compare their data to that measured a year earlier on the same set of trees, to determine the rate of carbon sequestration.

Students will be engaged in learning how human activities can deliberately or inadvertently alter the equilbrium of ecosystems through human behavior and/or the use of technology/biotechnology that impacts environmental quality and carrying capacity. Students will engage in graphing and interpreting data about the bald eagle, beaver and yeast populations. Students will evaluate their own understanding of carrying capacity by using a radar diagram; they will use a summarizing strategy to extend their knowledge and will learn how environmental problems are identified and solved.

Students will identify the major evolutionary innovations that separate plant divisions, and classify plants as belonging to one of those divisions based on phenotypic differences in plants. They will also classify plants by their pollen dispersal methods using pollen dispersal mapping, and justify the location of a crime scene using map analysis. Students will also be able to analyze and present their analysis of banding patterns from DNA fingerprinting using plants in a forensic context.

Students design, conduct, and analyze a controlled experiment testing the effects of alcohol on the worm C. elegans.

This resource is an overview of the eukaryotic cell cycle. It includes diagrams, a video, practice questions, a study guide, flash cards, interactive assessments, and articles on real world applications

This exercise from The Biology Project is designed to introduce students to the events that occur in the cell cycle and the process of mitosis that divides the duplicated genetic material, creating two identical daughter cells. It includes tutorial readings and multiple choice questions to test students' knowledge.

This lesson was designed to accompany the Online Onion Root Tip Activity. Students classify diagrams of onion root tip cells into the correct phase of the cell cycle in an interactive and receive feedback in the form of hints for cells they classify incorrectly. Students record their data from the cell cycle interactive in a table and answer questions to measure student learning.

In this webquest lesson, students will learn about cell division via the Internet. Students will learn about the cell cycle and the stages of mitosis and meiosis. Students will create a portfolio of pictures displaying the steps of mitosis and meiosis.

Cell Division and the Cell CycleGiving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org