Question

2 points

4.) The diagram to the right demonstrates a chicken and human embryo
both within the same developmental time.Both embryos show slits
homologous to fish gill slits. Neither are fish, yet they contain these slits at
this stage of their development. What can we theorize about this peculiar
observation?
Human embryo
Chicken embryo
slits homologous
to fish gill slits
tai
Both in chickens and in humans, the fish gill slits are hidden beneath our necks as
vestigial structures
O
These fish gill slits imply both Humans and Chickens may have a common ancestor
The homologous slits are examples of nucleic structures early in development
O
The fish gill slits on both embryos are examples of analogous structures

Answer 1

B

Step-by-step explanation:

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Answer 2

Option B

Step-by-step explanation:

The presence of these structures in this stage may be a prediction of a common ancestor as these structures are not gills because they do not develop into gills in chicks and humans but being so similar to gill structures in fish at this stage in their embryo suggests that chicks and humans share a common ancestor with fish.