Mutualism between fungi and coniferous trees is most common in the forest biome.
Explanation:
Beneficial interaction between two organisms of two different species in which both the organisms take benefit from each other in some way from this interaction. This beneficial interaction is called mutualism. Fungi and coniferous trees form interaction which is beneficial for both the species. In this interaction, the fungi help in the production of new root tips and plant provide shelter and nutrition to the fungus.
Answer: Sea stars move using a water vascular system. Water comes into the system via the madreporite. It is then circulated from the stone canal to the ring canal and into the radial canals.
Explanation: The radial canals carry water to the ampullae and provide suction to the tube feet.