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.
Produces food, oxygen during photosynthesis and provides shelter.
Toads are animals, not plants. Plants and animals are completely different living organisms.
Water is a non-living thing which is quite helpful to plants and animals unless they too wish to become non-living.
Deserts are helpful because it provides a biome* for many animals. *Biome-Habitat or living area that is the right texture and temperature for that organism.
The platypus is completely unique, and does not resemble any other living animal.
They provide CO2 for plant respiration. Their corpses provide nutrients for decomposers and plants. They feed on/provide food for other species of animals.
Living on the tideline means that animals such as the soldier crabs Mictyris longicarpus on the East Australian coast, face drying out on land for part of the day, but excess water intake when submerged.
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.
Echidnas are generally solitary animals. They do not live in groups.
All living things are being destroyed by humans, even humans. But if you want to know what living things are close to being completely destroyed, just search "list of endangered animals" on google
Energy is the life source for all living organisms. Without energy there will no plants or animals, even life wouldn't exist. If there is no photosynthesis, there would be no plants.