Biology
Which one of the following has a bilateral symmetry in its body organization?

Asterias
Nereis
Sea anemone
Euchinus

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Biology
Which statement describes decomposers?

Decomposers are those organisms that recycle matter in the ecosystem
Decomposers are insignificant organisms in the ecosystem and can be absent in some ecosystems
Decomposers can produce their own source of energy and can sometimes act as primary producers
All listed here

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