_ contribute to soils.
Sediment Aphids cacti Roundworms Exfoliation Amphibians Ringworms rainfall
A B C D E F G H
Also, nematoda and rotifera are important groups contributing to soils.
Roundworms contribute to soils.
_ contribute to soils. (A) Sediment (B) Aphids (C) cacti (D) Roundworms (E) Exfoliation (F) Amphibians (G) Ringworms (H) rainfall