44. The BIG idea: Variations of traits in organisms enhance their survival because some individuals will be better adapted to survive conditions in certain environments. 22. What did I learn previously? Heredity is the passage of traits from parent to offspring and genetic material is passed through the stored DNA that makes up genes in chromosomes. Organisms that reproduce sexually have variations in their traits because of the genetic information that is exchanged between two parents. 11. Unit Title: 3. What will I learn after this? Adaptations in plants & animals 5. Voc flow of energy in ecosystems 6. Related Topics: biodiversity 7. Focus Questions: Adaptations occur from natural selection over time. Species adapt in different ways for specific purposes. 8. Learning Expectations: Frog Dissection adaptation natural selection selective breeding population physiology species variation dichotomous key xylem phloem camouflage appendeges sustainability of an ecosystem Unit Organizer