Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. The images below show embryos of different species at different stages of
development. Label the images below with 1-4 from least developed to most
developed.
A 4 B 1 C 3 D 2
2. Which image above do you think is a human? Explain. Example B is human
because its smaller
Gizmo Warm-up
Embryology is the study of the development of embryos
from a single cell to a multicellular fetus. In the Embryo
Development Gizmo, you will compare the development of
different animals and learn the details of mammalian
development. To begin, be sure the COMPARE tab is
selected.
1. What do the images have in common? They have a similar shape
Click on the check box to turn on Scale bars and labels. You are observing the
zygotes, or fertilized single cells, of five animals.
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, 2. At this point, are you able to tell which animal is which? no Explain? Its to small to tell
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