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a. immature stage that is able to reproduce
b. early colony of cells of fresh-water sponges
c. early stage of development of an organism, typically part of plankton
d. sperm cell that lives free in the water
e. egg that has been fertilized by more than one sperm

2007-01-28 15:30:21 · 1 answers · asked by Anonymous in Science & Mathematics Biology

1 answers

The answer for sponges is C

2007-01-29 01:18:20 · answer #1 · answered by floundering penguins 5 · 0 0

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