Compare the structures of the cat and chicken embryos from the images in your eBook. Which characteristics do the species share as embryos that they do not share when they are fully developed? Select all that apply.

Question

Group of answer choices

Both animals have tails as embryos.

Both animals have similar upper limb buds as embryos.

Both animals have feathers as embryos.

Both animals have structurs similar to gill arches as embryos.

Answer 1

To compare the structures of cat and chicken embryos, we can analyze the following characteristics:

1. Both animals have tails as embryos. - True. Both cats and chickens have tail structures during the embryonic stage, which are not present in the same way in their fully developed forms.

2. Both animals have similar upper limb buds as embryos. - True. In the embryonic stage, both species exhibit limb buds that are structurally similar, indicating their shared vertebrate lineage.

3. Both animals have feathers as embryos. - False. Chickens, being birds, have feather precursors, whereas cats, being mammals, do not have feathers at any stage of embryonic development.

4. Both animals have structures similar to gill arches as embryos. - True. Both cat and chicken embryos develop structures that are analogous to gill arches during early development, a trait that reflects their common ancestry as vertebrates.

Based on this analysis, the characteristics they share as embryos that they do not share when fully developed are:

• Both animals have tails as embryos.
• Both animals have similar upper limb buds as embryos.
• Both animals have structures similar to gill arches as embryos.

So, the correct options are:

• Both animals have tails as embryos.
• Both animals have similar upper limb buds as embryos.
• Both animals have structures similar to gill arches as embryos.