Humans have quite large brains for their body size. One of the evolutionary questions is "why did such big brains, which consume a lot of calories evolve?" What data does the article use to explore the question as to why we evolved such large brains?

- It was stated early in the article, “scholars have proposed many explanations for the evolution of intelligence in primates, the lineage to which humans and apes belong.”

The data being stated to explore that question is that the intelligence had to develop over time with social learning and from different ecological or social problems that arose within their communities. These situations helped the brains gain intelligence.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.