<span>Penicillium notatum is a fungi.
</span>Penicillium<span> is a genus of ascomycetous fungi which has a major importance in the natural environmen. It plays an important role in food and drug production as well. Some members of the said genus produce penicillin, a molecule that is used as an antibiotic. These antibiotics kill or stop the growth of certain </span>kinds<span> of bacteria inside the body.</span>
Cycling of nutrients and flow of energy
Seedless plants do not have seeds or stems making the answer c. spores
For giving you understanding ; we need Free O2 but Oxygen is also available in H20 right why dont we use it !!
As the early atmosphere was reducing as there was no free oxygen but it was later produced by chemoautotrophic bacteria !! Living thing release O2 in atmosphere thus making it oxidising in nature and then life evolves !!