Question

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

Answer 1

@quickstudent

Answer 2

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

Answer 3

Nooo .

Answer 4

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

Answer 5

How ?

Answer 6

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

Answer 7

Nope . .

Answer 8

@Mackenzie2013

Answer 9

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

Answer 10

Starfish I believe

Answer 11

Ok , and ok .

Answer 12

If not might be the Earthworm