which of the following are vertebrates course hero

What is a dorsal supporting rod called?

Do squid have a backbone?

Do all chordates have an amniotic egg?

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What is a dorsal supporting rod called?

2) a dorsal supporting rod, called a notochordat some time in their life history

Do squid have a backbone?

they have no backbone or vertebrate but have a notochord in it's place

Do all chordates have an amniotic egg?

No, not all chordates develop in a water environment but reptiles ( includes birds) and some mammals produce an amniotic egg because they are adapted to life on land. An amniotic egg is like an own aquatic environment of their own making

What is a dorsal supporting rod called?

2) a dorsal supporting rod, called a notochordat some time in their life history

Do squid have a backbone?

they have no backbone or vertebrate but have a notochord in it's place

Do all chordates have an amniotic egg?

No, not all chordates develop in a water environment but reptiles ( includes birds) and some mammals produce an amniotic egg because they are adapted to life on land. An amniotic egg is like an own aquatic environment of their own making