Curated OER
Using Amino Acid Sequences to Show Evolutionary Relationships
Junior biologists compare the amino acid sequences from fragments of five different globin molecules. They count the letter differences between each species pair. They construct a graphic representation of the evolutionary relationships...
Curated OER
Controlling the Code: Molecules at Word
Students investigate how cells determine which genes will be expressed and which will be silent. In this genetics instructional activity, students use on-line resources to complete a worksheet and gather information about gene...
Curated OER
Hierarchical Organization in Biology: Students Presentations of Neurobiology
Young scholars gather (research) information on neuron structure and action potential. Students are guided to make inferences about the synapse and its relationship to neurotransmitter release and action. They are also guided to make...
Serendip
How Do Muscles Get the Energy They Need for Athletic Activity?
Every muscle movement requires energy, but where does that energy come from? Scholars answer this question and more as they complete a worksheet. By following the directions, completing research, and discussing it as a class, they begin...