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Do Not Let Sunlight Shine Directly On Worms

2.2.3. Respiratory system Earthworms do not have lungs, they breathe through their skin. Oxygen in the environment is dissolved into the mucus on the surface of the worms body, then penetrates the tiny branching blood vessel system inside and is transported to the organs, CO2 is also released ...

Questions: Circle the Correct Answer to the Following Questions

6. Check after treatment of worm disease During the treatment of worms, there are possibilities of: - Worms that tend to improve or recover from illness will show the following symptoms: + Return to normal operation without worms crawling on the substrate surface + Activity of eating all the food ...

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