It was a transformation of human life circumstances
Answer:
An individual animal, plant, or single-celled life form. Population: A particular section, group, or type of organisms living in an area or region. Levels of organization in ecology include the population, community, ecosystem, and biosphere. An ecosystem is all the living things in an area interacting with all of the abiotic parts of the environment
Explanation:
Just took the test and got it right
C is the choice I would make because I believe the writer is planning to answer this question: "and how come we think dogs are so smart". The writer never tells us what dogs can't do (a) or mention others being dumb (b) and doesn't make fun of humans (d)