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Biology 21 Online
OpenStudy (anonymous):

In an eight-cell embryo of an organism, the cells of the upper tier are aligned over the cells of the lower tier at a slight angle. Which organism is it likely to be? Earthworm Starfish Sea cucumber Sea urchin

OpenStudy (anonymous):

@quickstudent

OpenStudy (quickstudent):

Gee, I really don't know. Got anybody else to ask?

OpenStudy (anonymous):

Nooo .

OpenStudy (quickstudent):

Okay, I got to do some research, then. Meanwhile, can you type in the other questions?

OpenStudy (anonymous):

How ?

OpenStudy (quickstudent):

You mean, you can't see the next question without answering this one first?

OpenStudy (anonymous):

Nope . .

OpenStudy (anonymous):

@Mackenzie2013

OpenStudy (quickstudent):

Oh, yeah, you would have to close this question. Well, send me a message.

OpenStudy (mackenzie2013):

Starfish I believe

OpenStudy (anonymous):

Ok , and ok .

OpenStudy (mackenzie2013):

If not might be the Earthworm

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