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