84. Protostome Vs. Deuterostome Embryos Development Question Preview (ID: 50560)


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The differences can be determined very early on in development.
a) True
b) False
c)
d)

You can visually see a difference (with a microscope ) at the time there are ____________cells.
a) 8
b) 10
c) 12
d) 23

One distinction is in the cleavage present.
a) True
b) False
c)
d)

Cleavage refers to the division or split of cells.
a) True
b) False
c)
d)

In Protostomes we see a ___________cleavage.
a) uneven
b) skewed
c) spiral
d) curved

With a spiral cleavage the cells up top will__________ and have determinate cells. Meaning the cells have a specific “job”; such as making your heart, ear, liver etc.
a) line up
b) rotate
c) divide
d) curve

Deuterostomes have __________cleavage.
a) spiral
b) radial
c) circular
d)

Deuterostomes have planes of symmetry with indeterminate cells.
a) True
b) False
c)
d)

Indeterminate cleavage cell types can go on to become _______cell types.
a) reproduction
b) heart
c) brain
d) any

The largest difference between Protostomes and Deuterostomes is the order of development. In Protostomes the mouth develops first and the anus last. In Deuterostomes the anus develops first and the mouth develops last.
a) True
b) False
c)
d)

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