Deuterostomes derive their ________ from the second opening of the gastrula.
mouth X
anus
coelom
endoderm
ectoderm
ch32/deuterostome.html
_IM4_32_09tDeutDevelopmentC.jpg:Deuterostomes derive their ________ from the first opening (blastopore) of the gastrula.
mouth
anus X
coelom
endoderm
ectoderm
ch32/deuterostome.html