Answer And Explanation:
Primary sources of online data could be blog posts, twitter posts, and vlogs because the person producing forms of work is giving first-person account of his experience.
Secondary sources online data could be articles, news, and documentaries because people have gathered several primary sources to build their case that they are making.
Hope this is clear, and good luck with studies :)
The mitochondria is the powerhouse of the cell because it takes nutrients and breaks it down to provide energy for the cell.
Answer:
physical sicence boilagiy sxcience and earth science
Explanation:
