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Exam 2 Bio 2
Chapter 32
Question | Answer |
---|---|
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 |