Which structure is unique to vertebrates? (1 point)
Responses
skin
skin
brain
brain
backbone
backbone
limbs
limbs
Vertebrate embryos(1 point)
Responses
develop different structures at the same rate.
develop different structures at the same rate.
develop the same structures at different rates.
develop the same structures at different rates.
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 different rates.
Which is a similarity between a fish embryo and a bird embryo in the early stages of development? (1 point)
Responses
gill slits
gill slits
jaw bones
jaw bones
forelimbs
forelimbs
hindlimbs
gill slits
What is a similarity between a fish embryo and a human embryo in the late stages of development? (1 point)
Responses
They both have gills.
They both have gills.
They both have tails.
They both have tails.
They both have arms.
They both have arms.
They both have spines.
They both have spines.