Embryological Similarities

WARM-UP: How does comapring the anatomy of different types of animals support evolution?

Who's the Discussion Leader?

*Starts discussions

*Notes who participates

*Asks others to share ideas

*Keeps the Conversation on track

Who's the Screen-sharer?

*Needs a strong internet signal

*Shares screen for all to see

*Types agreed-upon answers/notes for all to see/copy

Who's the Time Manager & Reporter?

*Keeps track of time

*Monitors time left for each activity

*Warns group when time is almost out

*Shares the requirements for the activity with the group

*Calls teacher for help if needed

*Shares out to the main group

Label image C

Label image D

Which image above do you think is human? Explain.

What do the images have in common at stage 1?

At this point, are you able to tell which animal is which?

Explain.

Stage 1 Predictions

Stage 4 Predictions

Stage 8 Predictions

Stage 13 Predictions

Stage 16 Predictions

Stage 20 Predictions

Stage 23 Predictions

Did you guess correctly in the end?

At which stage were you able to tell which was which?

Explain.

What structure does all of the embryos have in common?

What do all of the embryos have in common at this stage?

What structure does all five embryos have in common?

What structures are missing from the frog and fish?

What structure does mice and humans have in common that are missing from the other organisms?

Looking at the similarities and differences between the organisms throughout development, which organisms are more closely related to one another?

Looking at the similarities and differences between the organisms throughout development, which organisms are more distantly related to one another?

Explain.