False.
These organisms would be considered parasites since they live off their host in a harmful way and give nothing in return. Taking oxygen only benefits the microorganism, the effect on the host my be more chronic than instant depending on the quantity of parasites.
I am not sure about the the quality of the answer. I am not sure about the truthfulness of my answer. But i believe that it is true. The life has begun some three and half years back. It has sustained and evolved through all the odds, including the infections. Better and better species has evolved through these years. There is very complex type of symbiosis has been existing all these years among the various species. I have good reasons to believe that infections keep you healthy. They boost up your immunity. This does not mean that you should take no precautions to prevent the infections. This also does not mean that you should not treat the infections. You have been taking safe drinking water and food. It has benefited the mankind in short term. You do not know the long term effects of the same. It may be harmful. Probably, it will be harmful. I believe that all the natural things were good for you. It is better to be as natural as possible.
true
True
True
They provide 75% of the worlds oxygen and break down rubbish otherwise the world would be a mess
Animals need food, oxygen, and water in order to live. However, plants and microorganisms have other needs. (Some microorganisms do not need oxygen to survive)
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.
1. Leaves in plants photosynthesise, whereby they give out oxygen, which is used by animals in respiration. 2. Leaves are a source of food for some animals. (They eat leaves.)
The hibiscus absorbs carbon dioxide & produces oxygen common to all plant life
obligate aerobe
So far, we can only speak for our own planet, Earth; we're not aware of any other planet with either plant life or large quantities of free oxygen. On Earth, oxygen is produced by plants, which take in carbon dioxide and secrete oxygen, much as animals breathe in oxygen and breathe out carbon dioxide. We really are in symbiosis with our planet.
Photosynthesis
Plants undergo photosynthesis which rids the world of the carbon dioxide that animals and people expel due to cellular respiration, and convert it into oxygen. We breathe the oxygen as we need it to survive.
Animals breathe in oxygen in the air.
Sewage purification in natural way:Sewage is purified by microorganisms present in sewage in an environmentally favourable condition to them. Microorganisms purify sewage either in the presence of oxygen or in the absence of oxygen also. When dissolved oxygen is completely utilised resulting no dissolved oxygen in the sewage, sewage attains a stingy condition commonly known as septic condition.
it provides us with soil in which we can grow vegetables and stuff. and it forms plants which carry oxygen which we need obviously to breath. hope this helps :).