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