Teacher Portal
Adaptation
Investigation 3
Investigation 3
Adaptation
Phase 1 – Defined Understanding
Student Guide
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Access Teacher Guide
Student Guide with answers
Teacher PreLab
Prepare for the Experiment
Phase 2 – Dynamic Understanding
► Investigation Three Summary – Natural Selection
In Investigation Three, you investigated the adaptations of different organisms. During this Investigation, you:
1. Modeled the existence of penguins in a world with increasingly colder environments.
2. Identified the genotypes and phenotypes of penguins with dense bones and less dense bones.
3. Represented the mortality and survival of penguins of differing bone density in a model ocean.
4. Analyzed the alleles of the offspring from surviving penguins and repeated the representation of the mortality and survival of these offspring in a model ocean.
5. Analyzed the fossil record of past penguin populations that occurred near Antarctica.
► Investigation Three Summary – Learning Goals
Through these experiments, you concluded that:
1. When a new environmental pressure is introduced, some organisms in a population will not survive. The organisms with the genes that are most adapted to the environment will have the highest chance of surviving and passing their genes on to the next generation. In our example, the change in the climate severely reduced the food source of the penguins. The result was that there was not enough food for all of the penguins in the population to survive and only one penguin survived. Because this penguin cannot mate with another penguin and reproduce, the population of penguins will become extinct.
Concept Slides
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Mathematics Concepts in This Investigation
- comparing (non)measurable characteristics
- analyzing combinations
- probability
- problem solving
- data table
- estimation
- time in seconds
- counting whole numbers
- additions/subtraction
- greater than/less than/equal to
- pairing/grouping
- solving a Punnet square
- data analysis