The correct answer for the question that is being presented above is this one: "oxygen became available from cyanobacteria." About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because oxygen became available from cyanobacteria.
Many cultures have a long history of discrimination against African Americans.
Answer:
Indonesia is by far the largest archipelago in the world.
Answer:
Hierarchical diffusion is one of six ways cultures can spread around the world (what we call ‘types of cultural diffusion’). What makes hierarchical diffusion unique is that it involves the spread of culture starting from the most powerful and influential people within the culture.
Once the influential people embrace a certain culture, the rest of the culture are more likely to follow.
Explanation: