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.
A submerged plant is a type of aquatic plant that grows entirely underwater. These plants have adaptations to survive in low light conditions and have specialized structures to extract oxygen and nutrients from the water. Examples of submerged plants include pondweed and hydrilla.
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.
Toads are animals, not plants. Plants and animals are completely different living organisms.
There are animals that eat only plants for food. Plants are also helpful for animals to hide in, live in, and build nests with.
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.
The submerged plants obtain their supply of carbon dioxide from our penis or vagina.
Because they decompose and it will give good fertility to plants.As in forests, the living beings are animals , plants , insects , birds.....they are helpful for plants by giving carbon dioxide to the plants.
no they are not