How has social media influenced the marketing and PR activities of companies? Explain in what ways companies, individuals, and NGOs can impact communities through social media?

Why is it that people at first would be nice then they shut you down? (school matter)

Which term defines one's age as measured by how well the body is working? chronological age biological age social age mental age

Although animals share many common characteristics, there is also a great amount of diversity found in animals. which animals are ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water?