different between earthworms vs roundworms

earthworms

earthworms From the web:

• what earthworms eat
• what earthworms do
• what earthworms are native to north america
• what earthworms are called farmer's friend
• what earthworms do to help soil
• what earthworms need to survive
• what earthworms eat soil
• what earthworms friends of farmers

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roundworms

roundworms From the web:

• what roundworms look like
• what roundworms which are dead end host
• what roundworms look like in cats
• what roundworms are important in human disease
• what roundworms in humans
• roundworms what type of biohazard
• roundworms what do they do
• roundworms meaning