<span>The trait that is ancestral to all chordates is the presence of a notochord...the others are gill slits and nerve chord</span>
DNA replication<span> is </span>semi-conservative<span> because each helix that is created contains one strand from the helix from which it was copied. </span>
Heart,vessels,circulating fluids
Tbh I don’t know. Sorry ❤️❣️
It is an example of a volcano the outside
red on the inside is magma
