Because they help oxygenate the water.
OxygenationHabitat coverFood
In the case of fish in a pond, completely submerged plants are helpful in that they add oxygen to the water and offer a food source. They also add oxygen to the air surrounding the pond for lunged animals that live there.
submerged plants is plant which completely submerged in the water with their roots in the bottom mud.
Nonvascular plants do not have a system of tubes to move water and minerals throughout it. these plants are usually plants completely submerged in water.
There are animals that eat only plants for food. Plants are also helpful for animals to hide in, live in, and build nests with.
Toads are animals, not plants. Plants and animals are completely different living organisms.
compressibility
Produces food, oxygen during photosynthesis and provides shelter.
Almost all plants need sunlight to photosynthesise. If the plant is permanently submerged, the water must be clear enough to allow sufficient light to reach the plant.
plants are help ful to animals because they are ugly
The submerged plants obtain their supply of carbon dioxide from our penis or vagina.
no they are not