Fetal Development

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Fetal Development
A CIBT Lab Exercise in Reproduction and Development

Price: No Charge

Authors:
Dave Frank, Cornell University, Ithaca, NY
Nancy Wright, Honeoye Central School, Honeoye, NY

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Abstract
Students will measure pictures of developing cow embryos to generate data for size. Then, they will interpret data from graphs to determine age as well as mass. Students will then compare changes of mass during fetal development with changes in size. Finally, students will contrast developmental trends in cows with that of humans. If the dissection of the pregnant bovine uterus was done, the fetal measurements from that lab may also be included.

Appropriate Levels
Life Science, Biology, Honors, AP, and Tech prep. 
Time Required.

Time RequiredTwo 45 minute class periods: One to complete data collection and graph data and a second one to analyze the graphs.

Materials

  • Laminated photos of developing bovine (Holstein) fetuses
  • Laminated photos of Human development
  • String
  • Ruler
  • Calculator
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