Which structure is unique to vertebrates? (1 point)
Responses
brain
brain
backbone
backbone
limbs
limbs
skin
2 answers
backbone
1. backbone
2. go through the same developmental stages at different rates.
3. gill slits
4. They both have spines
<33
2. go through the same developmental stages at different rates.
3. gill slits
4. They both have spines
<33
1 answer