Thursday 4 October 2012

Comparing Differentiation in Embryos


Comparing Differentiation in Embryos:
What To Do:
1. The embryo that has the development of a chicken, fish, human, rabbit, salamander, and tortoise. Is the human embryo or III, as you can see all of those animals in the development stages.
2. Three similarities: They all three go through stages of growing and changes. They all look alike at one point in the development. A third similarity is that they don't ever start off the same as they end.
What Did You Find Out?
1. No. At the start of development what is shown is completely different than what it ends up as. Like III ends up looking as a human baby. In II it is much smaller and skinnier as it has not grown.
2. Depending on which one, as I starts changing at the third stage, II starts to change at the second stage along with III.
3. In the first stages none of the organs or parts of the animal are developed so it ends up looking totally different than the end result. Human babies at first look like a fish until about the last stage when you see it is actually a human baby, although I is not as different than the first stage to the last.

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