Since the greenhouse effect causes the earth to be warmer than it would be without the atmosphere, the earth would be cooler and the temperature would be nearly 0 degrees fahrenheit instead of the average 59-60 degrees fahrenheit
Since you didn't endow us with any choices, I'll list some possible explanations:
- Increase in food
- Decrease in predators/enemy species
- Resorted to a new niche
- Lower death rate
- Higher birth rate
I hope I helped!
The answer is Protista.
The dichotomous key is used to identify the taxonomic category of an organism. So, if we start with statements from the beginning, and discard the possibilities, we can put the organism into some taxonomic group.
Accordingly, we know that a stentor has a nucleus, so it must be eukaryotic. Among the Eukaryotes, it could belong to the kingdom of Protista, Fungi, Plantae and Animalia. Since it is unicellular organism and lives only in the water, it could belong only to the kingdom of Protista