What organism is thought to be the first multi-cellular animal?
The ancient sponge
How is it the same and different from animals today?
Similarities: They both have molecules, cells, and different animal cells.
Differences: The way they feed, reproduce, and the way they move (sponges don't move)
How do scientists know its an animal?
The built up of thier cells and molecules. And collagen - a protien held by all living organisms.
What evidence do scientists have to prove that other animals (multi-cellular) evolved from this organism?
Thru genetics
What more do you want to know?
I personally want to know:
What made the cells interact?
How to determine if its a male or female?
The ancient sponge
How is it the same and different from animals today?
Similarities: They both have molecules, cells, and different animal cells.
Differences: The way they feed, reproduce, and the way they move (sponges don't move)
How do scientists know its an animal?
The built up of thier cells and molecules. And collagen - a protien held by all living organisms.
What evidence do scientists have to prove that other animals (multi-cellular) evolved from this organism?
Thru genetics
What more do you want to know?
I personally want to know:
What made the cells interact?
How to determine if its a male or female?
2 comments:
thats very straightforward. needs a wee bit more thought...then again, i'm not one to judge
to determined their sexual character ,,good quetions? maybe depend on the color or shape? who knows ^^~!!
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