What small-bristled worm do aquarists often use as food for their fish? What do you know about him?

1. What small-bristled worm do aquarists often use as food for their fish? What do you know about him? 2. How do earthworms participate in soil formation? 3. What role do ixodid ticks play in human life? How can they be dangerous? 4. Why are insects the most numerous in terms of the number of animal species on the planet?

1. Often, an earthworm is used as food for fish.
2. The earthworm makes moves in the soil, due to which moisture and air penetrate into it more. Earthworms feed on the rotten remains of plants and fungi, which they swallow with the soil. Digested residues are released to the outside and are a good fertilizer. Thus, participating in soil formation.
3. Ixodid ticks are carriers of dangerous infectious diseases.
4. Insects are small in size and quickly adapt to new habitats. They also have several stages of development, which take place in different environments.