Phylum _____ includes both vertebrate & invertebrate animals.
The 2 groups of INVERTEBRATE or nonvertebrate chordates are _____ & _____.
All chordates have, at some stage in their lives
"Dorsal, hollow nerve cord"; notocord; pharyngeal pouches; tail
Describe what happens to each of the above as the animal develops.
The "dorsall, hollow nerve cord" gives rise to the nervous system. The notocord is replaced by bone in many. Pharyngeal pouches give rise to gills in fish (lungs). Tail often dissapears during embryonic development or stays a tail.
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.