WELCOME… DEVELOPMENTAL BIOLOGISTS!. CHECKLIST Puzzle Pieces Puzzle Pieces “Comparative Embryology” reading “Comparative Embryology” reading Calculators.

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Presentation transcript:

WELCOME… DEVELOPMENTAL BIOLOGISTS!

CHECKLIST Puzzle Pieces Puzzle Pieces “Comparative Embryology” reading “Comparative Embryology” reading Calculators Calculators

MORE PUZZLES… Examine the puzzle pieces that have been provided Examine the puzzle pieces that have been provided These represent the stages of the pre-birth/pre-hatching development of 5 different vertebrates (fish, frog, human, chicken, cow) These represent the stages of the pre-birth/pre-hatching development of 5 different vertebrates (fish, frog, human, chicken, cow) Arrange the puzzle pieces in order for each vertebrate from earliest developmental stage to the latest stage in development. Arrange the puzzle pieces in order for each vertebrate from earliest developmental stage to the latest stage in development. Once you have arranged the pieces, obtain a completed puzzle from your teacher and compare your results Once you have arranged the pieces, obtain a completed puzzle from your teacher and compare your results

Baby Pictures… Observe the embryo images on the following slides. Observe the embryo images on the following slides. In your journal, record the similarities and differences you notice between the developmental stages of the organisms. In your journal, record the similarities and differences you notice between the developmental stages of the organisms.

THINK TIME! Answer the following in your journal: Answer the following in your journal: –How close was your team in getting the correct sequence of development stages for each animal? –Which parts of the puzzle were most difficult? Why? –Which animals have the most similar embryonic development? Least similar? –What do you think this tells you about how closely related these animals are to one another?

GET MORE DATA… Read the essay “Comparative Embryology” Read the essay “Comparative Embryology” Answer the following: Answer the following: –What is comparative embryology? –How do your results compare with the ones discussed in the essay?

EVEN MORE DATA… Complete the “Calculating Cousins” activity. Complete the “Calculating Cousins” activity. –Go to –Click on “Learning Center” –Click on “Calculating Cousins” –Click on “Launch Activity” and follow the directions for completing the activity.

The big idea… Fit your pieces of the “evolution puzzle” together: Fit your pieces of the “evolution puzzle” together: –How does the work of Comparative Embryologists help us to understand evolution?