Answer:
The mass of a star determines its life cycle, that is, more the mass, shorter will be its life cycle. The mass of the star is determined by the concentration of matter, which is found within its nebula. In the nebula, with time, the hydrogen gas comes in close proximity with each other due to gravity and starts to spin.
With the brisk spinning, the gas heats up and turns into a protostar. The temperature now reaches 15,000,000 degrees and within the core of the cloud, the phenomenon of nuclear fusion takes place. The cloud now contracts a little, starts to glow brightly, and turns stable. The cloud now becomes a prime sequence star, and will stay in this phase for millions of years, the Sun of our galaxy is in this stage at the moment.
As per I know there is no scenario which describes fungi as a decomposer.
▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️
Algae are not plants, animals or fungi. They belong to Kingdom Protista, a diverse group of single-celled eukaryotes.
Protists have their own kingdom because many species share some characteristics of plants, animals or fungi.
Algae belong to the group of plant-like protists.
They are autotrophs that fulfill the role of producer in ecosystems because they make their own food via photosynthesis, like plants.
▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️
<span>it has a specific activation site for enzyme attachment</span>
