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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 |