Answer:
Water vascular system = Echinodermata
Tentacles with stinging cells= Cnidaria
Molting for growth= Arthropoda
Presence of mantle= Molluska
Explanation:
It is water pollution, since you are polluting the river.
Hope I helped!
Photosynthesis is how plants eat by turning sunlight to food and without food we wouldnt have good air or plants as food and not just us other animals relies on plants and those animals will die and the food chain will be all messed up hope this helps
I'm pretty sure it's the cell since it's the basic unit of life and can change to carry out any function
