Which structure is unique to vertebrates? (1 point)

Question

Responses

brain

skin

backbone

limbs

Answer 1

backbone

Answer 2

ertebrate embryos(1 point)
Responses

go through the same developmental stages at different rates.
go through the same developmental stages at different rates.

go through the same developmental stages at the same rate.
go through the same developmental stages at the same rate.

develop different structures at the same rate.
develop different structures at the same rate.

develop the same structures at different rates.