Mammal Embryo Photos

In the image below, we see photos of mammal embryos from a research study conducted by Richardson in 1997. Use these photographs to answer the questions that follow.


NGSS Phenomena: An image of 11 different mammal embryos, showing the similarities between the shape of each of their bodies.
References:

Adapted from : Richardson, Michael K. et al. “There is no highly conserved embryonic stage in the vertebrates: implications for current theories of evolution and development.” Anatomy and Embryology 196 (1997): 91-106.

1. Use 3 different colors to identify three different patterns that you see on the images. Use a different color to identify each different pattern among these mammalian embryos.

Color

Width

2. Explain how you organized these images with the drawing tools and colors to see patterns between these different living things.

3. How can we explain the similarities between these living things?

4.
The graph below plots the skeleton size of a horse over 36 months. The image below is photos of mammal embryos. Use the image below to compare the different species of embryo by discussing two characteristics. Then using the graph, analyze the data’s correlation to the embryo image and identify whether it is linear or nonlinear.

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  • Patterns

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This free response question aligns to the following standards

  • Patterns

  • Analyzing and Interpreting Data

  • LS4.A: Evidence of Common Ancestry and Diversity

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