Essential Question: How did whales change over time

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Presentation transcript:

Essential Question: How did whales change over time Essential Question: How did whales change over time? Investigation Question: How does DNA show that whales changed over time? Investigation 1: The DNA in genes shows change over time. Mutations can cause changes in the physical structures and other random occurrences cause adaptations. DNA can be used to show the common ancestors to demonstrate the process of natural selection. Terms: DNA, Genes, Mutation, Adaptation, Common Ancestor, Natural selection

Sequence of Terms Genes DNA Common Ancestor Mutation Adaptation Natural Selection

How does DNA show that whales changed over time? Evidence Focus Question 1 How do mutations occur to create changes in their physical structure? Terms: DNA, Gene, Mutation

How does DNA show that whales changed over time? Evidence Focus Question 1 How are genes selected by the environment? Terms: Genes, Adaptation, Natural selection

How does DNA show that whales changed over time? Evidence Focus Question 1 How do patterns in the DNA link together common ancestors? Terms: DNA, Common Ancestor Toothed Whales Baleen Whales Rodhocetus Basilosaurus Ambulocetus Pakicetus Hippo

Exit Slip How does DNA show that whales changed over time? Write the question and answer in a complete sentence How does DNA show that whales changed over time? Claim/Focus questions (HOW): Evidence (WHY): Example (Pics and Vids) (WHAT):