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Comparative Embryology with 100- correct answers
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Comparative Embryology with 100- correct answers
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Comparative Embryology with100% correct answers
Define embryo - answer An organism's early pre-birth stage of
development
Example-Embryology - answer Gill slits are present in all vertebrate
embryos, but do not develop into gills in any but fish- This makes no
sense unless the vertebrates inherited their gill slits from a common
ancestor.
Analyse what comparative embryology tells us about evolution. -
answer it provides evidence for common ancestry.
Evidence for evolution - answer Comparative embryology provides
evidence for evolution because many embryos look very similar and
have traits that do not necessarily persist as they grow.
Recall what vertebrae embryos have in common - answer Gill slits
Explain what comparative embryology studies - answer The
similarities and differences between embryos of different species
Why did gills cease to develop in vertebrates other than fish? -
answer When different populations of the common ancestral species
were subjected to different environments, gills were no longer
needed, so over time they ceased to develop.
This evidence comes from (comparative embryology) - answer
developmental similarities
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