8 terms

Phylum Porifera

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filter feeding
method in which food particles are filtered from water as it passes by or through some part of the organism
hermaphrodite
an organism that has both male and female reproductive organs
external fertilization
the process by which the female lays eggs and the male fertilizes them once they are outside of the female
internal fertilization
Process in which eggs are fertilized inside the female's body
porifera
the phylum that contains sponges, the most simple animals
intracellular digestion
type of digestion used by simple invertebrates that breaks down food inside the cell
budding
asexual reproduction in which a part of the parent organism pinches off and forms a new organism
gemmules
produced when sponges are facing tough living conditions. these can survive freezing temperatures and drought