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Exam 2 Bio 2

Chapter 32

gametes are (2n/n) diploid
zygotes are (2n/n) diploid
what is a blastula ball of cells
inside a blastula there is empty space called ____ blastocoel
the opening in the blastula is called____ blastopore
____ is the outer covering (skin, scales, hair, feathers) ectoderm
_____ is the lining of the digestive tract endoderm
_____ is muscle, bones, other organs, cartilage, blood, etc. . . mesoderm
Assymmetry means that .... there is no symmetry
radial symmetry means that there is a ____ and a ____ top,bottom
bilateral symmety means that there is a _____ and _____ inaddition to a _____ and ____ front,back,top,bottom
diploblastic embryos have what 2 tissues ectoderm&endoderm
triploblastic embryos have what 3 tissues.... ectoderm, mesoderm, endoderm
acoelomate has ____ body cavity no
pseudocoelomate has a ____ body cavity false
eucoelomate has a ____ body cavity true
what tissue is acoelomate derived from mesoderm
what tissue is in pseudocoelomate endoderm, mesoderm
eucoelomate is surrounded by what tissue mesoderm
protostomes have ____(determinate or indeterminate) cells determinate
deuterstomes have _____(determinate or indeterminate) cells indeterminate
the blastopore in deuterostomes become... anus
in protostomes blastopores become.... mouth
Created by: 3153700