Which structure classifies an organism as a gnathostome? a lateral line system a mineralized bony skeleton amniotic eggs hingod inun

What happened to the digits as tetrapod legs evolved?

having a post-anal tail and gill slits are traits of all embryos belonging to which phylum?

Which of the following structures is not an extra-embryonic membrane of amniotes?   Question 17 options:   The allantois   The pharyngeal cleft   The chorion   The yolk   The amnion

6. Compare the overall body plan of the prawn to that of an insect like a grasshopper (see drawings below). Provide a complete side-by-side analysis of the two groups that would include body regions, and appendages. Focus your comparison on how the two groups have adapted uniquely to their environment. MacBook Pro

In a deuterostome animal, the blastopore becomes the mouth. True False

Of the following, which includes chordates that are NOT vertebrates? Myxini Echinodermata Gnathostomes Urochordata

is the presence of notochord considered as plesiomorphic character chordates? yes or no?

Post-anal tail is a unique feature shared by invertabrates and jawless fish chordates tetrapods all invert

Describe ways in which amniotes are more functionally or structur-ally suited for terrestriality than are anamniotes.